Home / 112,867.85-155,759.39-61,885.23

Finding the Fourth Proportional to 112,867.85, 155,759.39 and 61,885.23

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Solution

The fourth proportional to 112,867.85, 155,759.39 and 61,885.23 is: 85,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,867.85 : 155,759.39 = 61,885.23 : x
  2. Step 2: Convert to fraction form
    112,867.85/155,759.39 = 61,885.23/x
  3. Step 3: Cross multiply
    112,867.85x = 155,759.39 × 61,885.23
  4. Step 4: Simplify right side
    112,867.85x = 9,639,205,365.38
  5. Step 5: Solve for x
    x = 9,639,205,365.38/112,867.85
  6. Step 6: Final answer
    x = 85,402.58

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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.