Home / 137,426.28-205,902.69-107,428.87

Finding the Fourth Proportional to 137,426.28, 205,902.69 and 107,428.87

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Solution

The fourth proportional to 137,426.28, 205,902.69 and 107,428.87 is: 160,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,426.28 : 205,902.69 = 107,428.87 : x
  2. Step 2: Convert to fraction form
    137,426.28/205,902.69 = 107,428.87/x
  3. Step 3: Cross multiply
    137,426.28x = 205,902.69 × 107,428.87
  4. Step 4: Simplify right side
    137,426.28x = 22,119,893,316.66
  5. Step 5: Solve for x
    x = 22,119,893,316.66/137,426.28
  6. Step 6: Final answer
    x = 160,958.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.