Home / 145,617.26-218,425.80-40,436.20

Finding the Fourth Proportional to 145,617.26, 218,425.80 and 40,436.20

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Solution

The fourth proportional to 145,617.26, 218,425.80 and 40,436.20 is: 60,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,617.26 : 218,425.80 = 40,436.20 : x
  2. Step 2: Convert to fraction form
    145,617.26/218,425.80 = 40,436.20/x
  3. Step 3: Cross multiply
    145,617.26x = 218,425.80 × 40,436.20
  4. Step 4: Simplify right side
    145,617.26x = 8,832,309,333.96
  5. Step 5: Solve for x
    x = 8,832,309,333.96/145,617.26
  6. Step 6: Final answer
    x = 60,654.28

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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.