Home / 98,147.55-135,432.84-55,118.31

Finding the Fourth Proportional to 98,147.55, 135,432.84 and 55,118.31

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Solution

The fourth proportional to 98,147.55, 135,432.84 and 55,118.31 is: 76,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,147.55 : 135,432.84 = 55,118.31 : x
  2. Step 2: Convert to fraction form
    98,147.55/135,432.84 = 55,118.31/x
  3. Step 3: Cross multiply
    98,147.55x = 135,432.84 × 55,118.31
  4. Step 4: Simplify right side
    98,147.55x = 7,464,829,259.30
  5. Step 5: Solve for x
    x = 7,464,829,259.30/98,147.55
  6. Step 6: Final answer
    x = 76,057.21

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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.