Home / 113,989.16-157,313.18-63,000.79

Finding the Fourth Proportional to 113,989.16, 157,313.18 and 63,000.79

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Solution

The fourth proportional to 113,989.16, 157,313.18 and 63,000.79 is: 86,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.16 : 157,313.18 = 63,000.79 : x
  2. Step 2: Convert to fraction form
    113,989.16/157,313.18 = 63,000.79/x
  3. Step 3: Cross multiply
    113,989.16x = 157,313.18 × 63,000.79
  4. Step 4: Simplify right side
    113,989.16x = 9,910,854,617.41
  5. Step 5: Solve for x
    x = 9,910,854,617.41/113,989.16
  6. Step 6: Final answer
    x = 86,945.59

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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.