Home / 102,241.20-141,089.40-57,520.56

Finding the Fourth Proportional to 102,241.20, 141,089.40 and 57,520.56

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Solution

The fourth proportional to 102,241.20, 141,089.40 and 57,520.56 is: 79,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,241.20 : 141,089.40 = 57,520.56 : x
  2. Step 2: Convert to fraction form
    102,241.20/141,089.40 = 57,520.56/x
  3. Step 3: Cross multiply
    102,241.20x = 141,089.40 × 57,520.56
  4. Step 4: Simplify right side
    102,241.20x = 8,115,541,298.06
  5. Step 5: Solve for x
    x = 8,115,541,298.06/102,241.20
  6. Step 6: Final answer
    x = 79,376.43

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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.