Home / 112,935.60-169,403.40-83,411.10

Finding the Fourth Proportional to 112,935.60, 169,403.40 and 83,411.10

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Solution

The fourth proportional to 112,935.60, 169,403.40 and 83,411.10 is: 125,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,935.60 : 169,403.40 = 83,411.10 : x
  2. Step 2: Convert to fraction form
    112,935.60/169,403.40 = 83,411.10/x
  3. Step 3: Cross multiply
    112,935.60x = 169,403.40 × 83,411.10
  4. Step 4: Simplify right side
    112,935.60x = 14,130,123,937.74
  5. Step 5: Solve for x
    x = 14,130,123,937.74/112,935.60
  6. Step 6: Final answer
    x = 125,116.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.