Home / 102,836.46-141,891.27-65,088.78

Finding the Fourth Proportional to 102,836.46, 141,891.27 and 65,088.78

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Solution

The fourth proportional to 102,836.46, 141,891.27 and 65,088.78 is: 89,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,836.46 : 141,891.27 = 65,088.78 : x
  2. Step 2: Convert to fraction form
    102,836.46/141,891.27 = 65,088.78/x
  3. Step 3: Cross multiply
    102,836.46x = 141,891.27 × 65,088.78
  4. Step 4: Simplify right side
    102,836.46x = 9,235,529,656.95
  5. Step 5: Solve for x
    x = 9,235,529,656.95/102,836.46
  6. Step 6: Final answer
    x = 89,807.93

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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.