Home / 94,555.60-141,703.80-66,821.20

Finding the Fourth Proportional to 94,555.60, 141,703.80 and 66,821.20

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Solution

The fourth proportional to 94,555.60, 141,703.80 and 66,821.20 is: 100,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,555.60 : 141,703.80 = 66,821.20 : x
  2. Step 2: Convert to fraction form
    94,555.60/141,703.80 = 66,821.20/x
  3. Step 3: Cross multiply
    94,555.60x = 141,703.80 × 66,821.20
  4. Step 4: Simplify right side
    94,555.60x = 9,468,817,960.56
  5. Step 5: Solve for x
    x = 9,468,817,960.56/94,555.60
  6. Step 6: Final answer
    x = 100,140.21

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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.