Home / 112,809.40-169,214.10-103,132.60

Finding the Fourth Proportional to 112,809.40, 169,214.10 and 103,132.60

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Solution

The fourth proportional to 112,809.40, 169,214.10 and 103,132.60 is: 154,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,809.40 : 169,214.10 = 103,132.60 : x
  2. Step 2: Convert to fraction form
    112,809.40/169,214.10 = 103,132.60/x
  3. Step 3: Cross multiply
    112,809.40x = 169,214.10 × 103,132.60
  4. Step 4: Simplify right side
    112,809.40x = 17,451,490,089.66
  5. Step 5: Solve for x
    x = 17,451,490,089.66/112,809.40
  6. Step 6: Final answer
    x = 154,698.90

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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.