Home / 112,649.61-155,445.91-67,318.57

Finding the Fourth Proportional to 112,649.61, 155,445.91 and 67,318.57

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Solution

The fourth proportional to 112,649.61, 155,445.91 and 67,318.57 is: 92,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,649.61 : 155,445.91 = 67,318.57 : x
  2. Step 2: Convert to fraction form
    112,649.61/155,445.91 = 67,318.57/x
  3. Step 3: Cross multiply
    112,649.61x = 155,445.91 × 67,318.57
  4. Step 4: Simplify right side
    112,649.61x = 10,464,396,373.55
  5. Step 5: Solve for x
    x = 10,464,396,373.55/112,649.61
  6. Step 6: Final answer
    x = 92,893.32

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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.