Home / 112,752,862.40-169,129,293.60-90,078,046.40

Finding the Fourth Proportional to 112,752,862.40, 169,129,293.60 and 90,078,046.40

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Solution

The fourth proportional to 112,752,862.40, 169,129,293.60 and 90,078,046.40 is: 135,117,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,862.40 : 169,129,293.60 = 90,078,046.40 : x
  2. Step 2: Convert to fraction form
    112,752,862.40/169,129,293.60 = 90,078,046.40/x
  3. Step 3: Cross multiply
    112,752,862.40x = 169,129,293.60 × 90,078,046.40
  4. Step 4: Simplify right side
    112,752,862.40x = 15,234,836,356,500,024
  5. Step 5: Solve for x
    x = 15,234,836,356,500,024/112,752,862.40
  6. Step 6: Final answer
    x = 135,117,069.60

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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.