Home / 145,755.90-218,633.85-83,382.66

Finding the Fourth Proportional to 145,755.90, 218,633.85 and 83,382.66

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Solution

The fourth proportional to 145,755.90, 218,633.85 and 83,382.66 is: 125,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,755.90 : 218,633.85 = 83,382.66 : x
  2. Step 2: Convert to fraction form
    145,755.90/218,633.85 = 83,382.66/x
  3. Step 3: Cross multiply
    145,755.90x = 218,633.85 × 83,382.66
  4. Step 4: Simplify right side
    145,755.90x = 18,230,271,979.04
  5. Step 5: Solve for x
    x = 18,230,271,979.04/145,755.90
  6. Step 6: Final answer
    x = 125,073.99

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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.