Home / 150,311.28-207,429.16-86,648.72

Finding the Fourth Proportional to 150,311.28, 207,429.16 and 86,648.72

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Solution

The fourth proportional to 150,311.28, 207,429.16 and 86,648.72 is: 119,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,311.28 : 207,429.16 = 86,648.72 : x
  2. Step 2: Convert to fraction form
    150,311.28/207,429.16 = 86,648.72/x
  3. Step 3: Cross multiply
    150,311.28x = 207,429.16 × 86,648.72
  4. Step 4: Simplify right side
    150,311.28x = 17,973,471,204.68
  5. Step 5: Solve for x
    x = 17,973,471,204.68/150,311.28
  6. Step 6: Final answer
    x = 119,575.00

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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.