Home / 113,988.38-157,312.10-63,000.01

Finding the Fourth Proportional to 113,988.38, 157,312.10 and 63,000.01

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Solution

The fourth proportional to 113,988.38, 157,312.10 and 63,000.01 is: 86,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,988.38 : 157,312.10 = 63,000.01 : x
  2. Step 2: Convert to fraction form
    113,988.38/157,312.10 = 63,000.01/x
  3. Step 3: Cross multiply
    113,988.38x = 157,312.10 × 63,000.01
  4. Step 4: Simplify right side
    113,988.38x = 9,910,663,817.91
  5. Step 5: Solve for x
    x = 9,910,663,817.91/113,988.38
  6. Step 6: Final answer
    x = 86,944.51

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1.5x scale

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.