Home / 112,439.20-155,103.12-67,104.16

Finding the Fourth Proportional to 112,439.20, 155,103.12 and 67,104.16

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Solution

The fourth proportional to 112,439.20, 155,103.12 and 67,104.16 is: 92,566.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.20 : 155,103.12 = 67,104.16 : x
  2. Step 2: Convert to fraction form
    112,439.20/155,103.12 = 67,104.16/x
  3. Step 3: Cross multiply
    112,439.20x = 155,103.12 × 67,104.16
  4. Step 4: Simplify right side
    112,439.20x = 10,408,064,580.98
  5. Step 5: Solve for x
    x = 10,408,064,580.98/112,439.20
  6. Step 6: Final answer
    x = 92,566.16

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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.