Home / 88,285.55-132,428.33-81,805.55

Finding the Fourth Proportional to 88,285.55, 132,428.33 and 81,805.55

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Solution

The fourth proportional to 88,285.55, 132,428.33 and 81,805.55 is: 122,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,285.55 : 132,428.33 = 81,805.55 : x
  2. Step 2: Convert to fraction form
    88,285.55/132,428.33 = 81,805.55/x
  3. Step 3: Cross multiply
    88,285.55x = 132,428.33 × 81,805.55
  4. Step 4: Simplify right side
    88,285.55x = 10,833,371,962.20
  5. Step 5: Solve for x
    x = 10,833,371,962.20/88,285.55
  6. Step 6: Final answer
    x = 122,708.33

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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.