Home / 122,764.88-169,355.50-74,935.20

Finding the Fourth Proportional to 122,764.88, 169,355.50 and 74,935.20

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Solution

The fourth proportional to 122,764.88, 169,355.50 and 74,935.20 is: 103,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,764.88 : 169,355.50 = 74,935.20 : x
  2. Step 2: Convert to fraction form
    122,764.88/169,355.50 = 74,935.20/x
  3. Step 3: Cross multiply
    122,764.88x = 169,355.50 × 74,935.20
  4. Step 4: Simplify right side
    122,764.88x = 12,690,688,263.60
  5. Step 5: Solve for x
    x = 12,690,688,263.60/122,764.88
  6. Step 6: Final answer
    x = 103,373.93

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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.