Home / 143,962.84-215,944.23-77,311.29

Finding the Fourth Proportional to 143,962.84, 215,944.23 and 77,311.29

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Solution

The fourth proportional to 143,962.84, 215,944.23 and 77,311.29 is: 115,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,962.84 : 215,944.23 = 77,311.29 : x
  2. Step 2: Convert to fraction form
    143,962.84/215,944.23 = 77,311.29/x
  3. Step 3: Cross multiply
    143,962.84x = 215,944.23 × 77,311.29
  4. Step 4: Simplify right side
    143,962.84x = 16,694,925,832.16
  5. Step 5: Solve for x
    x = 16,694,925,832.16/143,962.84
  6. Step 6: Final answer
    x = 115,966.91

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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.