Home / 85,331.20-127,705.20-74,833.60

Finding the Fourth Proportional to 85,331.20, 127,705.20 and 74,833.60

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Solution

The fourth proportional to 85,331.20, 127,705.20 and 74,833.60 is: 111,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.20 : 127,705.20 = 74,833.60 : x
  2. Step 2: Convert to fraction form
    85,331.20/127,705.20 = 74,833.60/x
  3. Step 3: Cross multiply
    85,331.20x = 127,705.20 × 74,833.60
  4. Step 4: Simplify right side
    85,331.20x = 9,556,639,854.72
  5. Step 5: Solve for x
    x = 9,556,639,854.72/85,331.20
  6. Step 6: Final answer
    x = 111,994.67

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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.