Home / 127,770.20-176,326.53-71,185.22

Finding the Fourth Proportional to 127,770.20, 176,326.53 and 71,185.22

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Solution

The fourth proportional to 127,770.20, 176,326.53 and 71,185.22 is: 98,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,770.20 : 176,326.53 = 71,185.22 : x
  2. Step 2: Convert to fraction form
    127,770.20/176,326.53 = 71,185.22/x
  3. Step 3: Cross multiply
    127,770.20x = 176,326.53 × 71,185.22
  4. Step 4: Simplify right side
    127,770.20x = 12,551,842,829.89
  5. Step 5: Solve for x
    x = 12,551,842,829.89/127,770.20
  6. Step 6: Final answer
    x = 98,237.64

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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.