Home / 102,281.76-141,146.19-99,263.70

Finding the Fourth Proportional to 102,281.76, 141,146.19 and 99,263.70

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Solution

The fourth proportional to 102,281.76, 141,146.19 and 99,263.70 is: 136,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,281.76 : 141,146.19 = 99,263.70 : x
  2. Step 2: Convert to fraction form
    102,281.76/141,146.19 = 99,263.70/x
  3. Step 3: Cross multiply
    102,281.76x = 141,146.19 × 99,263.70
  4. Step 4: Simplify right side
    102,281.76x = 14,010,693,060.30
  5. Step 5: Solve for x
    x = 14,010,693,060.30/102,281.76
  6. Step 6: Final answer
    x = 136,981.35

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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.