Home / 148,129.73-204,418.90-83,612.55

Finding the Fourth Proportional to 148,129.73, 204,418.90 and 83,612.55

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Solution

The fourth proportional to 148,129.73, 204,418.90 and 83,612.55 is: 115,385.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.73 : 204,418.90 = 83,612.55 : x
  2. Step 2: Convert to fraction form
    148,129.73/204,418.90 = 83,612.55/x
  3. Step 3: Cross multiply
    148,129.73x = 204,418.90 × 83,612.55
  4. Step 4: Simplify right side
    148,129.73x = 17,091,985,079.13
  5. Step 5: Solve for x
    x = 17,091,985,079.13/148,129.73
  6. Step 6: Final answer
    x = 115,385.24

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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.