Home / 120,724.94-181,265.14-67,521.16

Finding the Fourth Proportional to 120,724.94, 181,265.14 and 67,521.16

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Solution

The fourth proportional to 120,724.94, 181,265.14 and 67,521.16 is: 101,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,724.94 : 181,265.14 = 67,521.16 : x
  2. Step 2: Convert to fraction form
    120,724.94/181,265.14 = 67,521.16/x
  3. Step 3: Cross multiply
    120,724.94x = 181,265.14 × 67,521.16
  4. Step 4: Simplify right side
    120,724.94x = 12,239,232,520.36
  5. Step 5: Solve for x
    x = 12,239,232,520.36/120,724.94
  6. Step 6: Final answer
    x = 101,381.14

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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.