Home / 113,320.32-156,384-62,335.20

Finding the Fourth Proportional to 113,320.32, 156,384 and 62,335.20

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Solution

The fourth proportional to 113,320.32, 156,384 and 62,335.20 is: 86,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,320.32 : 156,384 = 62,335.20 : x
  2. Step 2: Convert to fraction form
    113,320.32/156,384 = 62,335.20/x
  3. Step 3: Cross multiply
    113,320.32x = 156,384 × 62,335.20
  4. Step 4: Simplify right side
    113,320.32x = 9,748,227,916.80
  5. Step 5: Solve for x
    x = 9,748,227,916.80/113,320.32
  6. Step 6: Final answer
    x = 86,023.65

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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.