Home / 109,899.20-151,669.05-61,505.98

Finding the Fourth Proportional to 109,899.20, 151,669.05 and 61,505.98

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Solution

The fourth proportional to 109,899.20, 151,669.05 and 61,505.98 is: 84,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,899.20 : 151,669.05 = 61,505.98 : x
  2. Step 2: Convert to fraction form
    109,899.20/151,669.05 = 61,505.98/x
  3. Step 3: Cross multiply
    109,899.20x = 151,669.05 × 61,505.98
  4. Step 4: Simplify right side
    109,899.20x = 9,328,553,248.39
  5. Step 5: Solve for x
    x = 9,328,553,248.39/109,899.20
  6. Step 6: Final answer
    x = 84,882.81

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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.