Home / 112,867.35-155,758.69-61,884.73

Finding the Fourth Proportional to 112,867.35, 155,758.69 and 61,884.73

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Solution

The fourth proportional to 112,867.35, 155,758.69 and 61,884.73 is: 85,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,867.35 : 155,758.69 = 61,884.73 : x
  2. Step 2: Convert to fraction form
    112,867.35/155,758.69 = 61,884.73/x
  3. Step 3: Cross multiply
    112,867.35x = 155,758.69 × 61,884.73
  4. Step 4: Simplify right side
    112,867.35x = 9,639,084,475.80
  5. Step 5: Solve for x
    x = 9,639,084,475.80/112,867.35
  6. Step 6: Final answer
    x = 85,401.89

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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.