Home / 101,561.20-152,355.97-42,383.31

Finding the Fourth Proportional to 101,561.20, 152,355.97 and 42,383.31

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Solution

The fourth proportional to 101,561.20, 152,355.97 and 42,383.31 is: 63,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,561.20 : 152,355.97 = 42,383.31 : x
  2. Step 2: Convert to fraction form
    101,561.20/152,355.97 = 42,383.31/x
  3. Step 3: Cross multiply
    101,561.20x = 152,355.97 × 42,383.31
  4. Step 4: Simplify right side
    101,561.20x = 6,457,349,545.08
  5. Step 5: Solve for x
    x = 6,457,349,545.08/101,561.20
  6. Step 6: Final answer
    x = 63,580.87

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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.