Home / 139,725,159.40-209,587,739.10-105,712,935.40

Finding the Fourth Proportional to 139,725,159.40, 209,587,739.10 and 105,712,935.40

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Solution

The fourth proportional to 139,725,159.40, 209,587,739.10 and 105,712,935.40 is: 158,569,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,725,159.40 : 209,587,739.10 = 105,712,935.40 : x
  2. Step 2: Convert to fraction form
    139,725,159.40/209,587,739.10 = 105,712,935.40/x
  3. Step 3: Cross multiply
    139,725,159.40x = 209,587,739.10 × 105,712,935.40
  4. Step 4: Simplify right side
    139,725,159.40x = 22,156,135,124,110,356
  5. Step 5: Solve for x
    x = 22,156,135,124,110,356/139,725,159.40
  6. Step 6: Final answer
    x = 158,569,403.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.