Home / 145,412.20-218,117.89-45,572.82

Finding the Fourth Proportional to 145,412.20, 218,117.89 and 45,572.82

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Solution

The fourth proportional to 145,412.20, 218,117.89 and 45,572.82 is: 68,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.20 : 218,117.89 = 45,572.82 : x
  2. Step 2: Convert to fraction form
    145,412.20/218,117.89 = 45,572.82/x
  3. Step 3: Cross multiply
    145,412.20x = 218,117.89 × 45,572.82
  4. Step 4: Simplify right side
    145,412.20x = 9,940,247,339.75
  5. Step 5: Solve for x
    x = 9,940,247,339.75/145,412.20
  6. Step 6: Final answer
    x = 68,359.10

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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.