Home / 113,436.48-156,539.68-63,134.40

Finding the Fourth Proportional to 113,436.48, 156,539.68 and 63,134.40

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Solution

The fourth proportional to 113,436.48, 156,539.68 and 63,134.40 is: 87,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,436.48 : 156,539.68 = 63,134.40 : x
  2. Step 2: Convert to fraction form
    113,436.48/156,539.68 = 63,134.40/x
  3. Step 3: Cross multiply
    113,436.48x = 156,539.68 × 63,134.40
  4. Step 4: Simplify right side
    113,436.48x = 9,883,038,772.99
  5. Step 5: Solve for x
    x = 9,883,038,772.99/113,436.48
  6. Step 6: Final answer
    x = 87,123.99

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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.