Home / 138,925.64-208,264.86-50,159.40

Finding the Fourth Proportional to 138,925.64, 208,264.86 and 50,159.40

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Solution

The fourth proportional to 138,925.64, 208,264.86 and 50,159.40 is: 75,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,925.64 : 208,264.86 = 50,159.40 : x
  2. Step 2: Convert to fraction form
    138,925.64/208,264.86 = 50,159.40/x
  3. Step 3: Cross multiply
    138,925.64x = 208,264.86 × 50,159.40
  4. Step 4: Simplify right side
    138,925.64x = 10,446,440,418.68
  5. Step 5: Solve for x
    x = 10,446,440,418.68/138,925.64
  6. Step 6: Final answer
    x = 75,194.47

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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.