Home / 98,961.52-136,747.72-72,057.16

Finding the Fourth Proportional to 98,961.52, 136,747.72 and 72,057.16

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Solution

The fourth proportional to 98,961.52, 136,747.72 and 72,057.16 is: 99,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,961.52 : 136,747.72 = 72,057.16 : x
  2. Step 2: Convert to fraction form
    98,961.52/136,747.72 = 72,057.16/x
  3. Step 3: Cross multiply
    98,961.52x = 136,747.72 × 72,057.16
  4. Step 4: Simplify right side
    98,961.52x = 9,853,652,339.68
  5. Step 5: Solve for x
    x = 9,853,652,339.68/98,961.52
  6. Step 6: Final answer
    x = 99,570.54

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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.