Home / 120,737.90-181,131.15-101,152.10

Finding the Fourth Proportional to 120,737.90, 181,131.15 and 101,152.10

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Solution

The fourth proportional to 120,737.90, 181,131.15 and 101,152.10 is: 151,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,737.90 : 181,131.15 = 101,152.10 : x
  2. Step 2: Convert to fraction form
    120,737.90/181,131.15 = 101,152.10/x
  3. Step 3: Cross multiply
    120,737.90x = 181,131.15 × 101,152.10
  4. Step 4: Simplify right side
    120,737.90x = 18,321,796,197.92
  5. Step 5: Solve for x
    x = 18,321,796,197.92/120,737.90
  6. Step 6: Final answer
    x = 151,748.51

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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.