Home / 115,312.56-172,976.12-48,743.92

Finding the Fourth Proportional to 115,312.56, 172,976.12 and 48,743.92

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Solution

The fourth proportional to 115,312.56, 172,976.12 and 48,743.92 is: 73,118.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,312.56 : 172,976.12 = 48,743.92 : x
  2. Step 2: Convert to fraction form
    115,312.56/172,976.12 = 48,743.92/x
  3. Step 3: Cross multiply
    115,312.56x = 172,976.12 × 48,743.92
  4. Step 4: Simplify right side
    115,312.56x = 8,431,534,155.19
  5. Step 5: Solve for x
    x = 8,431,534,155.19/115,312.56
  6. Step 6: Final answer
    x = 73,118.96

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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.