Home / 115,134.76-172,658.46-45,005.32

Finding the Fourth Proportional to 115,134.76, 172,658.46 and 45,005.32

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Solution

The fourth proportional to 115,134.76, 172,658.46 and 45,005.32 is: 67,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,134.76 : 172,658.46 = 45,005.32 : x
  2. Step 2: Convert to fraction form
    115,134.76/172,658.46 = 45,005.32/x
  3. Step 3: Cross multiply
    115,134.76x = 172,658.46 × 45,005.32
  4. Step 4: Simplify right side
    115,134.76x = 7,770,549,243.01
  5. Step 5: Solve for x
    x = 7,770,549,243.01/115,134.76
  6. Step 6: Final answer
    x = 67,490.91

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1.5x scale

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.