Home / 135,445.10-186,915.73-75,016.70

Finding the Fourth Proportional to 135,445.10, 186,915.73 and 75,016.70

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Solution

The fourth proportional to 135,445.10, 186,915.73 and 75,016.70 is: 103,523.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.10 : 186,915.73 = 75,016.70 : x
  2. Step 2: Convert to fraction form
    135,445.10/186,915.73 = 75,016.70/x
  3. Step 3: Cross multiply
    135,445.10x = 186,915.73 × 75,016.70
  4. Step 4: Simplify right side
    135,445.10x = 14,021,799,933.03
  5. Step 5: Solve for x
    x = 14,021,799,933.03/135,445.10
  6. Step 6: Final answer
    x = 103,523.86

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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.