Home / 135,549.50-187,049.82-75,116.60

Finding the Fourth Proportional to 135,549.50, 187,049.82 and 75,116.60

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Solution

The fourth proportional to 135,549.50, 187,049.82 and 75,116.60 is: 103,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,549.50 : 187,049.82 = 75,116.60 : x
  2. Step 2: Convert to fraction form
    135,549.50/187,049.82 = 75,116.60/x
  3. Step 3: Cross multiply
    135,549.50x = 187,049.82 × 75,116.60
  4. Step 4: Simplify right side
    135,549.50x = 14,050,546,509.01
  5. Step 5: Solve for x
    x = 14,050,546,509.01/135,549.50
  6. Step 6: Final answer
    x = 103,656.20

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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.