Home / 99,910.13-149,939.17-47,319.77

Finding the Fourth Proportional to 99,910.13, 149,939.17 and 47,319.77

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Solution

The fourth proportional to 99,910.13, 149,939.17 and 47,319.77 is: 71,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910.13 : 149,939.17 = 47,319.77 : x
  2. Step 2: Convert to fraction form
    99,910.13/149,939.17 = 47,319.77/x
  3. Step 3: Cross multiply
    99,910.13x = 149,939.17 × 47,319.77
  4. Step 4: Simplify right side
    99,910.13x = 7,095,087,294.94
  5. Step 5: Solve for x
    x = 7,095,087,294.94/99,910.13
  6. Step 6: Final answer
    x = 71,014.70

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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.