Home / 108,519.10-162,778.65-91,023.10

Finding the Fourth Proportional to 108,519.10, 162,778.65 and 91,023.10

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Solution

The fourth proportional to 108,519.10, 162,778.65 and 91,023.10 is: 136,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519.10 : 162,778.65 = 91,023.10 : x
  2. Step 2: Convert to fraction form
    108,519.10/162,778.65 = 91,023.10/x
  3. Step 3: Cross multiply
    108,519.10x = 162,778.65 × 91,023.10
  4. Step 4: Simplify right side
    108,519.10x = 14,816,617,336.82
  5. Step 5: Solve for x
    x = 14,816,617,336.82/108,519.10
  6. Step 6: Final answer
    x = 136,534.65

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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.