Home / 113,768.31-157,000.15-62,781.03

Finding the Fourth Proportional to 113,768.31, 157,000.15 and 62,781.03

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Solution

The fourth proportional to 113,768.31, 157,000.15 and 62,781.03 is: 86,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,768.31 : 157,000.15 = 62,781.03 : x
  2. Step 2: Convert to fraction form
    113,768.31/157,000.15 = 62,781.03/x
  3. Step 3: Cross multiply
    113,768.31x = 157,000.15 × 62,781.03
  4. Step 4: Simplify right side
    113,768.31x = 9,856,631,127.15
  5. Step 5: Solve for x
    x = 9,856,631,127.15/113,768.31
  6. Step 6: Final answer
    x = 86,637.76

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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.