Home / 115,006.57-172,455.28-40,117.61

Finding the Fourth Proportional to 115,006.57, 172,455.28 and 40,117.61

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Solution

The fourth proportional to 115,006.57, 172,455.28 and 40,117.61 is: 60,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,006.57 : 172,455.28 = 40,117.61 : x
  2. Step 2: Convert to fraction form
    115,006.57/172,455.28 = 40,117.61/x
  3. Step 3: Cross multiply
    115,006.57x = 172,455.28 × 40,117.61
  4. Step 4: Simplify right side
    115,006.57x = 6,918,493,996.32
  5. Step 5: Solve for x
    x = 6,918,493,996.32/115,006.57
  6. Step 6: Final answer
    x = 60,157.38

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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.