Home / 147,681.20-203,800.34-80,613.20

Finding the Fourth Proportional to 147,681.20, 203,800.34 and 80,613.20

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Solution

The fourth proportional to 147,681.20, 203,800.34 and 80,613.20 is: 111,246.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,681.20 : 203,800.34 = 80,613.20 : x
  2. Step 2: Convert to fraction form
    147,681.20/203,800.34 = 80,613.20/x
  3. Step 3: Cross multiply
    147,681.20x = 203,800.34 × 80,613.20
  4. Step 4: Simplify right side
    147,681.20x = 16,428,997,568.49
  5. Step 5: Solve for x
    x = 16,428,997,568.49/147,681.20
  6. Step 6: Final answer
    x = 111,246.37

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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.