Home / 121,589.28-182,585.64-75,137.40

Finding the Fourth Proportional to 121,589.28, 182,585.64 and 75,137.40

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Solution

The fourth proportional to 121,589.28, 182,585.64 and 75,137.40 is: 112,830.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,589.28 : 182,585.64 = 75,137.40 : x
  2. Step 2: Convert to fraction form
    121,589.28/182,585.64 = 75,137.40/x
  3. Step 3: Cross multiply
    121,589.28x = 182,585.64 × 75,137.40
  4. Step 4: Simplify right side
    121,589.28x = 13,719,010,266.94
  5. Step 5: Solve for x
    x = 13,719,010,266.94/121,589.28
  6. Step 6: Final answer
    x = 112,830.76

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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.