Home / 123,973.20-171,092.25-76,243.14

Finding the Fourth Proportional to 123,973.20, 171,092.25 and 76,243.14

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Solution

The fourth proportional to 123,973.20, 171,092.25 and 76,243.14 is: 105,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,973.20 : 171,092.25 = 76,243.14 : x
  2. Step 2: Convert to fraction form
    123,973.20/171,092.25 = 76,243.14/x
  3. Step 3: Cross multiply
    123,973.20x = 171,092.25 × 76,243.14
  4. Step 4: Simplify right side
    123,973.20x = 13,044,610,369.67
  5. Step 5: Solve for x
    x = 13,044,610,369.67/123,973.20
  6. Step 6: Final answer
    x = 105,221.21

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1.5x scale

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.