Home / 112,464.91-155,251.53-85,608.55

Finding the Fourth Proportional to 112,464.91, 155,251.53 and 85,608.55

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Solution

The fourth proportional to 112,464.91, 155,251.53 and 85,608.55 is: 118,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,464.91 : 155,251.53 = 85,608.55 : x
  2. Step 2: Convert to fraction form
    112,464.91/155,251.53 = 85,608.55/x
  3. Step 3: Cross multiply
    112,464.91x = 155,251.53 × 85,608.55
  4. Step 4: Simplify right side
    112,464.91x = 13,290,858,368.58
  5. Step 5: Solve for x
    x = 13,290,858,368.58/112,464.91
  6. Step 6: Final answer
    x = 118,177.82

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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.