Home / 134,720.43-185,915.51-74,293.21

Finding the Fourth Proportional to 134,720.43, 185,915.51 and 74,293.21

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Solution

The fourth proportional to 134,720.43, 185,915.51 and 74,293.21 is: 102,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,720.43 : 185,915.51 = 74,293.21 : x
  2. Step 2: Convert to fraction form
    134,720.43/185,915.51 = 74,293.21/x
  3. Step 3: Cross multiply
    134,720.43x = 185,915.51 × 74,293.21
  4. Step 4: Simplify right side
    134,720.43x = 13,812,260,026.69
  5. Step 5: Solve for x
    x = 13,812,260,026.69/134,720.43
  6. Step 6: Final answer
    x = 102,525.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.