Home / 98,154.72-135,454.16-55,713.96

Finding the Fourth Proportional to 98,154.72, 135,454.16 and 55,713.96

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Solution

The fourth proportional to 98,154.72, 135,454.16 and 55,713.96 is: 76,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,154.72 : 135,454.16 = 55,713.96 : x
  2. Step 2: Convert to fraction form
    98,154.72/135,454.16 = 55,713.96/x
  3. Step 3: Cross multiply
    98,154.72x = 135,454.16 × 55,713.96
  4. Step 4: Simplify right side
    98,154.72x = 7,546,687,373.50
  5. Step 5: Solve for x
    x = 7,546,687,373.50/98,154.72
  6. Step 6: Final answer
    x = 76,885.63

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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.