Home / 101,630.85-152,421.76-42,434.43

Finding the Fourth Proportional to 101,630.85, 152,421.76 and 42,434.43

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Solution

The fourth proportional to 101,630.85, 152,421.76 and 42,434.43 is: 63,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,630.85 : 152,421.76 = 42,434.43 : x
  2. Step 2: Convert to fraction form
    101,630.85/152,421.76 = 42,434.43/x
  3. Step 3: Cross multiply
    101,630.85x = 152,421.76 × 42,434.43
  4. Step 4: Simplify right side
    101,630.85x = 6,467,930,505.20
  5. Step 5: Solve for x
    x = 6,467,930,505.20/101,630.85
  6. Step 6: Final answer
    x = 63,641.41

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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.