Home / 85,094.40-127,339.20-74,121.60

Finding the Fourth Proportional to 85,094.40, 127,339.20 and 74,121.60

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Solution

The fourth proportional to 85,094.40, 127,339.20 and 74,121.60 is: 110,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,094.40 : 127,339.20 = 74,121.60 : x
  2. Step 2: Convert to fraction form
    85,094.40/127,339.20 = 74,121.60/x
  3. Step 3: Cross multiply
    85,094.40x = 127,339.20 × 74,121.60
  4. Step 4: Simplify right side
    85,094.40x = 9,438,585,246.72
  5. Step 5: Solve for x
    x = 9,438,585,246.72/85,094.40
  6. Step 6: Final answer
    x = 110,918.99

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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.