Home / 85,330.20-127,703.70-74,832.60

Finding the Fourth Proportional to 85,330.20, 127,703.70 and 74,832.60

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Solution

The fourth proportional to 85,330.20, 127,703.70 and 74,832.60 is: 111,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,330.20 : 127,703.70 = 74,832.60 : x
  2. Step 2: Convert to fraction form
    85,330.20/127,703.70 = 74,832.60/x
  3. Step 3: Cross multiply
    85,330.20x = 127,703.70 × 74,832.60
  4. Step 4: Simplify right side
    85,330.20x = 9,556,399,900.62
  5. Step 5: Solve for x
    x = 9,556,399,900.62/85,330.20
  6. Step 6: Final answer
    x = 111,993.17

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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.