Home / 138,952.04-191,757.38-85,266.72

Finding the Fourth Proportional to 138,952.04, 191,757.38 and 85,266.72

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Solution

The fourth proportional to 138,952.04, 191,757.38 and 85,266.72 is: 117,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,952.04 : 191,757.38 = 85,266.72 : x
  2. Step 2: Convert to fraction form
    138,952.04/191,757.38 = 85,266.72/x
  3. Step 3: Cross multiply
    138,952.04x = 191,757.38 × 85,266.72
  4. Step 4: Simplify right side
    138,952.04x = 16,350,522,402.06
  5. Step 5: Solve for x
    x = 16,350,522,402.06/138,952.04
  6. Step 6: Final answer
    x = 117,670.26

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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.