Home / 115,763.01-159,753.56-64,775.85

Finding the Fourth Proportional to 115,763.01, 159,753.56 and 64,775.85

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Solution

The fourth proportional to 115,763.01, 159,753.56 and 64,775.85 is: 89,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,763.01 : 159,753.56 = 64,775.85 : x
  2. Step 2: Convert to fraction form
    115,763.01/159,753.56 = 64,775.85/x
  3. Step 3: Cross multiply
    115,763.01x = 159,753.56 × 64,775.85
  4. Step 4: Simplify right side
    115,763.01x = 10,348,172,639.53
  5. Step 5: Solve for x
    x = 10,348,172,639.53/115,763.01
  6. Step 6: Final answer
    x = 89,391.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.