Home / 111,577.52-154,006.20-69,111.92

Finding the Fourth Proportional to 111,577.52, 154,006.20 and 69,111.92

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Solution

The fourth proportional to 111,577.52, 154,006.20 and 69,111.92 is: 95,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,577.52 : 154,006.20 = 69,111.92 : x
  2. Step 2: Convert to fraction form
    111,577.52/154,006.20 = 69,111.92/x
  3. Step 3: Cross multiply
    111,577.52x = 154,006.20 × 69,111.92
  4. Step 4: Simplify right side
    111,577.52x = 10,643,664,173.90
  5. Step 5: Solve for x
    x = 10,643,664,173.90/111,577.52
  6. Step 6: Final answer
    x = 95,392.55

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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.