Home / 108,147.23-148,159.25-104,104.12

Finding the Fourth Proportional to 108,147.23, 148,159.25 and 104,104.12

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Solution

The fourth proportional to 108,147.23, 148,159.25 and 104,104.12 is: 142,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,147.23 : 148,159.25 = 104,104.12 : x
  2. Step 2: Convert to fraction form
    108,147.23/148,159.25 = 104,104.12/x
  3. Step 3: Cross multiply
    108,147.23x = 148,159.25 × 104,104.12
  4. Step 4: Simplify right side
    108,147.23x = 15,423,987,079.79
  5. Step 5: Solve for x
    x = 15,423,987,079.79/108,147.23
  6. Step 6: Final answer
    x = 142,620.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.