Home / 145,589.81-218,385.92-45,747.79

Finding the Fourth Proportional to 145,589.81, 218,385.92 and 45,747.79

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Solution

The fourth proportional to 145,589.81, 218,385.92 and 45,747.79 is: 68,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,589.81 : 218,385.92 = 45,747.79 : x
  2. Step 2: Convert to fraction form
    145,589.81/218,385.92 = 45,747.79/x
  3. Step 3: Cross multiply
    145,589.81x = 218,385.92 × 45,747.79
  4. Step 4: Simplify right side
    145,589.81x = 9,990,672,775.52
  5. Step 5: Solve for x
    x = 9,990,672,775.52/145,589.81
  6. Step 6: Final answer
    x = 68,622.06

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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.