Home / 118,780.52-163,911.75-71,060.18

Finding the Fourth Proportional to 118,780.52, 163,911.75 and 71,060.18

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Solution

The fourth proportional to 118,780.52, 163,911.75 and 71,060.18 is: 98,059.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,780.52 : 163,911.75 = 71,060.18 : x
  2. Step 2: Convert to fraction form
    118,780.52/163,911.75 = 71,060.18/x
  3. Step 3: Cross multiply
    118,780.52x = 163,911.75 × 71,060.18
  4. Step 4: Simplify right side
    118,780.52x = 11,647,598,459.12
  5. Step 5: Solve for x
    x = 11,647,598,459.12/118,780.52
  6. Step 6: Final answer
    x = 98,059.84

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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.