Home / 107,439.52-161,144.40-28,560.16

Finding the Fourth Proportional to 107,439.52, 161,144.40 and 28,560.16

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Solution

The fourth proportional to 107,439.52, 161,144.40 and 28,560.16 is: 42,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,439.52 : 161,144.40 = 28,560.16 : x
  2. Step 2: Convert to fraction form
    107,439.52/161,144.40 = 28,560.16/x
  3. Step 3: Cross multiply
    107,439.52x = 161,144.40 × 28,560.16
  4. Step 4: Simplify right side
    107,439.52x = 4,602,309,847.10
  5. Step 5: Solve for x
    x = 4,602,309,847.10/107,439.52
  6. Step 6: Final answer
    x = 42,836.28

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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.