Home / 102,465.09-141,402.60-57,146.04

Finding the Fourth Proportional to 102,465.09, 141,402.60 and 57,146.04

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Solution

The fourth proportional to 102,465.09, 141,402.60 and 57,146.04 is: 78,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,465.09 : 141,402.60 = 57,146.04 : x
  2. Step 2: Convert to fraction form
    102,465.09/141,402.60 = 57,146.04/x
  3. Step 3: Cross multiply
    102,465.09x = 141,402.60 × 57,146.04
  4. Step 4: Simplify right side
    102,465.09x = 8,080,598,635.70
  5. Step 5: Solve for x
    x = 8,080,598,635.70/102,465.09
  6. Step 6: Final answer
    x = 78,861.97

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1.5x scale

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.