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Finding the Fourth Proportional to 102,479.16, 152,700.01 and 91,299.95

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Solution

The fourth proportional to 102,479.16, 152,700.01 and 91,299.95 is: 136,042.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,479.16 : 152,700.01 = 91,299.95 : x
  2. Step 2: Convert to fraction form
    102,479.16/152,700.01 = 91,299.95/x
  3. Step 3: Cross multiply
    102,479.16x = 152,700.01 × 91,299.95
  4. Step 4: Simplify right side
    102,479.16x = 13,941,503,278.00
  5. Step 5: Solve for x
    x = 13,941,503,278.00/102,479.16
  6. Step 6: Final answer
    x = 136,042.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.