Home / 115,387.60-172,951.80-48,816.40

Finding the Fourth Proportional to 115,387.60, 172,951.80 and 48,816.40

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Solution

The fourth proportional to 115,387.60, 172,951.80 and 48,816.40 is: 73,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,387.60 : 172,951.80 = 48,816.40 : x
  2. Step 2: Convert to fraction form
    115,387.60/172,951.80 = 48,816.40/x
  3. Step 3: Cross multiply
    115,387.60x = 172,951.80 × 48,816.40
  4. Step 4: Simplify right side
    115,387.60x = 8,442,884,249.52
  5. Step 5: Solve for x
    x = 8,442,884,249.52/115,387.60
  6. Step 6: Final answer
    x = 73,169.77

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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.