Home / 127,721.73-176,255.99-71,133.10

Finding the Fourth Proportional to 127,721.73, 176,255.99 and 71,133.10

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Solution

The fourth proportional to 127,721.73, 176,255.99 and 71,133.10 is: 98,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,721.73 : 176,255.99 = 71,133.10 : x
  2. Step 2: Convert to fraction form
    127,721.73/176,255.99 = 71,133.10/x
  3. Step 3: Cross multiply
    127,721.73x = 176,255.99 × 71,133.10
  4. Step 4: Simplify right side
    127,721.73x = 12,537,634,962.27
  5. Step 5: Solve for x
    x = 12,537,634,962.27/127,721.73
  6. Step 6: Final answer
    x = 98,163.68

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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.