Home / 132,878.14-199,337.29-42,890.78

Finding the Fourth Proportional to 132,878.14, 199,337.29 and 42,890.78

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Solution

The fourth proportional to 132,878.14, 199,337.29 and 42,890.78 is: 64,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,878.14 : 199,337.29 = 42,890.78 : x
  2. Step 2: Convert to fraction form
    132,878.14/199,337.29 = 42,890.78/x
  3. Step 3: Cross multiply
    132,878.14x = 199,337.29 × 42,890.78
  4. Step 4: Simplify right side
    132,878.14x = 8,549,732,242.30
  5. Step 5: Solve for x
    x = 8,549,732,242.30/132,878.14
  6. Step 6: Final answer
    x = 64,342.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.