Home / 231,051.76-318,853.87-135,560.05

Finding the Fourth Proportional to 231,051.76, 318,853.87 and 135,560.05

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Solution

The fourth proportional to 231,051.76, 318,853.87 and 135,560.05 is: 187,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,051.76 : 318,853.87 = 135,560.05 : x
  2. Step 2: Convert to fraction form
    231,051.76/318,853.87 = 135,560.05/x
  3. Step 3: Cross multiply
    231,051.76x = 318,853.87 × 135,560.05
  4. Step 4: Simplify right side
    231,051.76x = 43,223,845,423.86
  5. Step 5: Solve for x
    x = 43,223,845,423.86/231,051.76
  6. Step 6: Final answer
    x = 187,074.30

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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.