Home / 140,972.04-194,543.91-77,309.28

Finding the Fourth Proportional to 140,972.04, 194,543.91 and 77,309.28

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Solution

The fourth proportional to 140,972.04, 194,543.91 and 77,309.28 is: 106,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,972.04 : 194,543.91 = 77,309.28 : x
  2. Step 2: Convert to fraction form
    140,972.04/194,543.91 = 77,309.28/x
  3. Step 3: Cross multiply
    140,972.04x = 194,543.91 × 77,309.28
  4. Step 4: Simplify right side
    140,972.04x = 15,040,049,610.48
  5. Step 5: Solve for x
    x = 15,040,049,610.48/140,972.04
  6. Step 6: Final answer
    x = 106,688.17

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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.