Home / 131,693.55-181,740.20-75,103.71

Finding the Fourth Proportional to 131,693.55, 181,740.20 and 75,103.71

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Solution

The fourth proportional to 131,693.55, 181,740.20 and 75,103.71 is: 103,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.55 : 181,740.20 = 75,103.71 : x
  2. Step 2: Convert to fraction form
    131,693.55/181,740.20 = 75,103.71/x
  3. Step 3: Cross multiply
    131,693.55x = 181,740.20 × 75,103.71
  4. Step 4: Simplify right side
    131,693.55x = 13,649,363,276.14
  5. Step 5: Solve for x
    x = 13,649,363,276.14/131,693.55
  6. Step 6: Final answer
    x = 103,644.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.