Home / 145,000.26-217,520.64-45,167.76

Finding the Fourth Proportional to 145,000.26, 217,520.64 and 45,167.76

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Solution

The fourth proportional to 145,000.26, 217,520.64 and 45,167.76 is: 67,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,000.26 : 217,520.64 = 45,167.76 : x
  2. Step 2: Convert to fraction form
    145,000.26/217,520.64 = 45,167.76/x
  3. Step 3: Cross multiply
    145,000.26x = 217,520.64 × 45,167.76
  4. Step 4: Simplify right side
    145,000.26x = 9,824,920,062.57
  5. Step 5: Solve for x
    x = 9,824,920,062.57/145,000.26
  6. Step 6: Final answer
    x = 67,757.95

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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.