Home / 107,886.93-161,915.13-74,839.56

Finding the Fourth Proportional to 107,886.93, 161,915.13 and 74,839.56

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Solution

The fourth proportional to 107,886.93, 161,915.13 and 74,839.56 is: 112,318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,886.93 : 161,915.13 = 74,839.56 : x
  2. Step 2: Convert to fraction form
    107,886.93/161,915.13 = 74,839.56/x
  3. Step 3: Cross multiply
    107,886.93x = 161,915.13 × 74,839.56
  4. Step 4: Simplify right side
    107,886.93x = 12,117,657,086.54
  5. Step 5: Solve for x
    x = 12,117,657,086.54/107,886.93
  6. Step 6: Final answer
    x = 112,318.12

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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.