Home / 123,916.32-186,064.02-109,248.84

Finding the Fourth Proportional to 123,916.32, 186,064.02 and 109,248.84

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Solution

The fourth proportional to 123,916.32, 186,064.02 and 109,248.84 is: 164,040.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,916.32 : 186,064.02 = 109,248.84 : x
  2. Step 2: Convert to fraction form
    123,916.32/186,064.02 = 109,248.84/x
  3. Step 3: Cross multiply
    123,916.32x = 186,064.02 × 109,248.84
  4. Step 4: Simplify right side
    123,916.32x = 20,327,278,350.74
  5. Step 5: Solve for x
    x = 20,327,278,350.74/123,916.32
  6. Step 6: Final answer
    x = 164,040.36

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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.