Home / 125,024.88-187,407.72-78,170.16

Finding the Fourth Proportional to 125,024.88, 187,407.72 and 78,170.16

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Solution

The fourth proportional to 125,024.88, 187,407.72 and 78,170.16 is: 117,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,024.88 : 187,407.72 = 78,170.16 : x
  2. Step 2: Convert to fraction form
    125,024.88/187,407.72 = 78,170.16/x
  3. Step 3: Cross multiply
    125,024.88x = 187,407.72 × 78,170.16
  4. Step 4: Simplify right side
    125,024.88x = 14,649,691,457.64
  5. Step 5: Solve for x
    x = 14,649,691,457.64/125,024.88
  6. Step 6: Final answer
    x = 117,174.21

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1.5x scale

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.