Home / 345,699.90-518,549.87-109,061.04

Finding the Fourth Proportional to 345,699.90, 518,549.87 and 109,061.04

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Solution

The fourth proportional to 345,699.90, 518,549.87 and 109,061.04 is: 163,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,699.90 : 518,549.87 = 109,061.04 : x
  2. Step 2: Convert to fraction form
    345,699.90/518,549.87 = 109,061.04/x
  3. Step 3: Cross multiply
    345,699.90x = 518,549.87 × 109,061.04
  4. Step 4: Simplify right side
    345,699.90x = 56,553,587,568.76
  5. Step 5: Solve for x
    x = 56,553,587,568.76/345,699.90
  6. Step 6: Final answer
    x = 163,591.56

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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.