Home / 145,929.55-218,765.13-57,246.70

Finding the Fourth Proportional to 145,929.55, 218,765.13 and 57,246.70

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Solution

The fourth proportional to 145,929.55, 218,765.13 and 57,246.70 is: 85,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,929.55 : 218,765.13 = 57,246.70 : x
  2. Step 2: Convert to fraction form
    145,929.55/218,765.13 = 57,246.70/x
  3. Step 3: Cross multiply
    145,929.55x = 218,765.13 × 57,246.70
  4. Step 4: Simplify right side
    145,929.55x = 12,523,581,767.57
  5. Step 5: Solve for x
    x = 12,523,581,767.57/145,929.55
  6. Step 6: Final answer
    x = 85,819.37

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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.