Home / 107,487.30-161,232.53-40,931.12

Finding the Fourth Proportional to 107,487.30, 161,232.53 and 40,931.12

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Solution

The fourth proportional to 107,487.30, 161,232.53 and 40,931.12 is: 61,397.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,487.30 : 161,232.53 = 40,931.12 : x
  2. Step 2: Convert to fraction form
    107,487.30/161,232.53 = 40,931.12/x
  3. Step 3: Cross multiply
    107,487.30x = 161,232.53 × 40,931.12
  4. Step 4: Simplify right side
    107,487.30x = 6,599,427,022.52
  5. Step 5: Solve for x
    x = 6,599,427,022.52/107,487.30
  6. Step 6: Final answer
    x = 61,397.27

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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.