Home / 115,273.72-172,925.70-45,143.92

Finding the Fourth Proportional to 115,273.72, 172,925.70 and 45,143.92

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Solution

The fourth proportional to 115,273.72, 172,925.70 and 45,143.92 is: 67,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,273.72 : 172,925.70 = 45,143.92 : x
  2. Step 2: Convert to fraction form
    115,273.72/172,925.70 = 45,143.92/x
  3. Step 3: Cross multiply
    115,273.72x = 172,925.70 × 45,143.92
  4. Step 4: Simplify right side
    115,273.72x = 7,806,543,966.74
  5. Step 5: Solve for x
    x = 7,806,543,966.74/115,273.72
  6. Step 6: Final answer
    x = 67,721.80

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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.