Home / 140,343.13-193,616.17-103,637.29

Finding the Fourth Proportional to 140,343.13, 193,616.17 and 103,637.29

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Solution

The fourth proportional to 140,343.13, 193,616.17 and 103,637.29 is: 142,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,343.13 : 193,616.17 = 103,637.29 : x
  2. Step 2: Convert to fraction form
    140,343.13/193,616.17 = 103,637.29/x
  3. Step 3: Cross multiply
    140,343.13x = 193,616.17 × 103,637.29
  4. Step 4: Simplify right side
    140,343.13x = 20,065,855,158.98
  5. Step 5: Solve for x
    x = 20,065,855,158.98/140,343.13
  6. Step 6: Final answer
    x = 142,977.11

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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.