Home / 125,190.48-187,659.36-78,476.16

Finding the Fourth Proportional to 125,190.48, 187,659.36 and 78,476.16

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Solution

The fourth proportional to 125,190.48, 187,659.36 and 78,476.16 is: 117,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,190.48 : 187,659.36 = 78,476.16 : x
  2. Step 2: Convert to fraction form
    125,190.48/187,659.36 = 78,476.16/x
  3. Step 3: Cross multiply
    125,190.48x = 187,659.36 × 78,476.16
  4. Step 4: Simplify right side
    125,190.48x = 14,726,785,960.86
  5. Step 5: Solve for x
    x = 14,726,785,960.86/125,190.48
  6. Step 6: Final answer
    x = 117,635.03

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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.