Home / 112,306.71-168,453.59-67,921.55

Finding the Fourth Proportional to 112,306.71, 168,453.59 and 67,921.55

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Solution

The fourth proportional to 112,306.71, 168,453.59 and 67,921.55 is: 101,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,306.71 : 168,453.59 = 67,921.55 : x
  2. Step 2: Convert to fraction form
    112,306.71/168,453.59 = 67,921.55/x
  3. Step 3: Cross multiply
    112,306.71x = 168,453.59 × 67,921.55
  4. Step 4: Simplify right side
    112,306.71x = 11,441,627,753.99
  5. Step 5: Solve for x
    x = 11,441,627,753.99/112,306.71
  6. Step 6: Final answer
    x = 101,878.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.