Home / 134,961.73-186,209.08-81,229.57

Finding the Fourth Proportional to 134,961.73, 186,209.08 and 81,229.57

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Solution

The fourth proportional to 134,961.73, 186,209.08 and 81,229.57 is: 112,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,961.73 : 186,209.08 = 81,229.57 : x
  2. Step 2: Convert to fraction form
    134,961.73/186,209.08 = 81,229.57/x
  3. Step 3: Cross multiply
    134,961.73x = 186,209.08 × 81,229.57
  4. Step 4: Simplify right side
    134,961.73x = 15,125,683,498.50
  5. Step 5: Solve for x
    x = 15,125,683,498.50/134,961.73
  6. Step 6: Final answer
    x = 112,073.87

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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.