Home / 112,452.60-155,159.01-67,145.25

Finding the Fourth Proportional to 112,452.60, 155,159.01 and 67,145.25

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Solution

The fourth proportional to 112,452.60, 155,159.01 and 67,145.25 is: 92,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,452.60 : 155,159.01 = 67,145.25 : x
  2. Step 2: Convert to fraction form
    112,452.60/155,159.01 = 67,145.25/x
  3. Step 3: Cross multiply
    112,452.60x = 155,159.01 × 67,145.25
  4. Step 4: Simplify right side
    112,452.60x = 10,418,190,516.20
  5. Step 5: Solve for x
    x = 10,418,190,516.20/112,452.60
  6. Step 6: Final answer
    x = 92,645.17

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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.