Home / 130,766.72-180,452.76-74,176.88

Finding the Fourth Proportional to 130,766.72, 180,452.76 and 74,176.88

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Solution

The fourth proportional to 130,766.72, 180,452.76 and 74,176.88 is: 102,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,766.72 : 180,452.76 = 74,176.88 : x
  2. Step 2: Convert to fraction form
    130,766.72/180,452.76 = 74,176.88/x
  3. Step 3: Cross multiply
    130,766.72x = 180,452.76 × 74,176.88
  4. Step 4: Simplify right side
    130,766.72x = 13,385,422,724.19
  5. Step 5: Solve for x
    x = 13,385,422,724.19/130,766.72
  6. Step 6: Final answer
    x = 102,361.08

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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.