Home / 135,445.15-186,915.87-75,016.96

Finding the Fourth Proportional to 135,445.15, 186,915.87 and 75,016.96

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Solution

The fourth proportional to 135,445.15, 186,915.87 and 75,016.96 is: 103,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.15 : 186,915.87 = 75,016.96 : x
  2. Step 2: Convert to fraction form
    135,445.15/186,915.87 = 75,016.96/x
  3. Step 3: Cross multiply
    135,445.15x = 186,915.87 × 75,016.96
  4. Step 4: Simplify right side
    135,445.15x = 14,021,860,343.16
  5. Step 5: Solve for x
    x = 14,021,860,343.16/135,445.15
  6. Step 6: Final answer
    x = 103,524.27

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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.