Home / 108,149.93-162,224.85-78,754.82

Finding the Fourth Proportional to 108,149.93, 162,224.85 and 78,754.82

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Solution

The fourth proportional to 108,149.93, 162,224.85 and 78,754.82 is: 118,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,149.93 : 162,224.85 = 78,754.82 : x
  2. Step 2: Convert to fraction form
    108,149.93/162,224.85 = 78,754.82/x
  3. Step 3: Cross multiply
    108,149.93x = 162,224.85 × 78,754.82
  4. Step 4: Simplify right side
    108,149.93x = 12,775,988,861.28
  5. Step 5: Solve for x
    x = 12,775,988,861.28/108,149.93
  6. Step 6: Final answer
    x = 118,132.20

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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.