Home / 102,827.70-141,909.45-57,509.90

Finding the Fourth Proportional to 102,827.70, 141,909.45 and 57,509.90

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Solution

The fourth proportional to 102,827.70, 141,909.45 and 57,509.90 is: 79,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,827.70 : 141,909.45 = 57,509.90 : x
  2. Step 2: Convert to fraction form
    102,827.70/141,909.45 = 57,509.90/x
  3. Step 3: Cross multiply
    102,827.70x = 141,909.45 × 57,509.90
  4. Step 4: Simplify right side
    102,827.70x = 8,161,197,569.01
  5. Step 5: Solve for x
    x = 8,161,197,569.01/102,827.70
  6. Step 6: Final answer
    x = 79,367.70

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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.