Home / 134,291.40-185,331.78-80,575.08

Finding the Fourth Proportional to 134,291.40, 185,331.78 and 80,575.08

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Solution

The fourth proportional to 134,291.40, 185,331.78 and 80,575.08 is: 111,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,291.40 : 185,331.78 = 80,575.08 : x
  2. Step 2: Convert to fraction form
    134,291.40/185,331.78 = 80,575.08/x
  3. Step 3: Cross multiply
    134,291.40x = 185,331.78 × 80,575.08
  4. Step 4: Simplify right side
    134,291.40x = 14,933,123,000.04
  5. Step 5: Solve for x
    x = 14,933,123,000.04/134,291.40
  6. Step 6: Final answer
    x = 111,199.40

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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.