Home / 113,990.10-157,301.45-63,000.20

Finding the Fourth Proportional to 113,990.10, 157,301.45 and 63,000.20

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Solution

The fourth proportional to 113,990.10, 157,301.45 and 63,000.20 is: 86,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,990.10 : 157,301.45 = 63,000.20 : x
  2. Step 2: Convert to fraction form
    113,990.10/157,301.45 = 63,000.20/x
  3. Step 3: Cross multiply
    113,990.10x = 157,301.45 × 63,000.20
  4. Step 4: Simplify right side
    113,990.10x = 9,910,022,810.29
  5. Step 5: Solve for x
    x = 9,910,022,810.29/113,990.10
  6. Step 6: Final answer
    x = 86,937.57

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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.