Home / 108,487.20-162,756.78-45,272.16

Finding the Fourth Proportional to 108,487.20, 162,756.78 and 45,272.16

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Solution

The fourth proportional to 108,487.20, 162,756.78 and 45,272.16 is: 67,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,487.20 : 162,756.78 = 45,272.16 : x
  2. Step 2: Convert to fraction form
    108,487.20/162,756.78 = 45,272.16/x
  3. Step 3: Cross multiply
    108,487.20x = 162,756.78 × 45,272.16
  4. Step 4: Simplify right side
    108,487.20x = 7,368,350,985.24
  5. Step 5: Solve for x
    x = 7,368,350,985.24/108,487.20
  6. Step 6: Final answer
    x = 67,919.08

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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.