Home / 109,512.80-151,127.62-61,766.04

Finding the Fourth Proportional to 109,512.80, 151,127.62 and 61,766.04

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Solution

The fourth proportional to 109,512.80, 151,127.62 and 61,766.04 is: 85,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,512.80 : 151,127.62 = 61,766.04 : x
  2. Step 2: Convert to fraction form
    109,512.80/151,127.62 = 61,766.04/x
  3. Step 3: Cross multiply
    109,512.80x = 151,127.62 × 61,766.04
  4. Step 4: Simplify right side
    109,512.80x = 9,334,554,622.02
  5. Step 5: Solve for x
    x = 9,334,554,622.02/109,512.80
  6. Step 6: Final answer
    x = 85,237.11

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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.