Home / 140,427.67-193,791.48-79,997.42

Finding the Fourth Proportional to 140,427.67, 193,791.48 and 79,997.42

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Solution

The fourth proportional to 140,427.67, 193,791.48 and 79,997.42 is: 110,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,427.67 : 193,791.48 = 79,997.42 : x
  2. Step 2: Convert to fraction form
    140,427.67/193,791.48 = 79,997.42/x
  3. Step 3: Cross multiply
    140,427.67x = 193,791.48 × 79,997.42
  4. Step 4: Simplify right side
    140,427.67x = 15,502,817,875.75
  5. Step 5: Solve for x
    x = 15,502,817,875.75/140,427.67
  6. Step 6: Final answer
    x = 110,397.17

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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.