Home / 135,760.32-187,359.54-75,342.42

Finding the Fourth Proportional to 135,760.32, 187,359.54 and 75,342.42

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Solution

The fourth proportional to 135,760.32, 187,359.54 and 75,342.42 is: 103,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,760.32 : 187,359.54 = 75,342.42 : x
  2. Step 2: Convert to fraction form
    135,760.32/187,359.54 = 75,342.42/x
  3. Step 3: Cross multiply
    135,760.32x = 187,359.54 × 75,342.42
  4. Step 4: Simplify right side
    135,760.32x = 14,116,121,153.69
  5. Step 5: Solve for x
    x = 14,116,121,153.69/135,760.32
  6. Step 6: Final answer
    x = 103,978.25

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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.