Home / 145,621.96-218,517.82-61,376.96

Finding the Fourth Proportional to 145,621.96, 218,517.82 and 61,376.96

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Solution

The fourth proportional to 145,621.96, 218,517.82 and 61,376.96 is: 92,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,621.96 : 218,517.82 = 61,376.96 : x
  2. Step 2: Convert to fraction form
    145,621.96/218,517.82 = 61,376.96/x
  3. Step 3: Cross multiply
    145,621.96x = 218,517.82 × 61,376.96
  4. Step 4: Simplify right side
    145,621.96x = 13,411,959,497.43
  5. Step 5: Solve for x
    x = 13,411,959,497.43/145,621.96
  6. Step 6: Final answer
    x = 92,101.22

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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.