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Finding the Fourth Proportional to 109,350.80, 150,904.11 and 61,604.13

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Solution

The fourth proportional to 109,350.80, 150,904.11 and 61,604.13 is: 85,013.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,350.80 : 150,904.11 = 61,604.13 : x
  2. Step 2: Convert to fraction form
    109,350.80/150,904.11 = 61,604.13/x
  3. Step 3: Cross multiply
    109,350.80x = 150,904.11 × 61,604.13
  4. Step 4: Simplify right side
    109,350.80x = 9,296,316,409.97
  5. Step 5: Solve for x
    x = 9,296,316,409.97/109,350.80
  6. Step 6: Final answer
    x = 85,013.70

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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.