Home / 115,088.91-172,454.31-43,972.76

Finding the Fourth Proportional to 115,088.91, 172,454.31 and 43,972.76

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Solution

The fourth proportional to 115,088.91, 172,454.31 and 43,972.76 is: 65,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,088.91 : 172,454.31 = 43,972.76 : x
  2. Step 2: Convert to fraction form
    115,088.91/172,454.31 = 43,972.76/x
  3. Step 3: Cross multiply
    115,088.91x = 172,454.31 × 43,972.76
  4. Step 4: Simplify right side
    115,088.91x = 7,583,291,122.32
  5. Step 5: Solve for x
    x = 7,583,291,122.32/115,088.91
  6. Step 6: Final answer
    x = 65,890.72

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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.