Home / 148,644.10-205,192.85-91,292.72

Finding the Fourth Proportional to 148,644.10, 205,192.85 and 91,292.72

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Solution

The fourth proportional to 148,644.10, 205,192.85 and 91,292.72 is: 126,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,644.10 : 205,192.85 = 91,292.72 : x
  2. Step 2: Convert to fraction form
    148,644.10/205,192.85 = 91,292.72/x
  3. Step 3: Cross multiply
    148,644.10x = 205,192.85 × 91,292.72
  4. Step 4: Simplify right side
    148,644.10x = 18,732,613,401.05
  5. Step 5: Solve for x
    x = 18,732,613,401.05/148,644.10
  6. Step 6: Final answer
    x = 126,023.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.