Home / 119,531.18-178,422.27-105,343.88

Finding the Fourth Proportional to 119,531.18, 178,422.27 and 105,343.88

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Solution

The fourth proportional to 119,531.18, 178,422.27 and 105,343.88 is: 157,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,531.18 : 178,422.27 = 105,343.88 : x
  2. Step 2: Convert to fraction form
    119,531.18/178,422.27 = 105,343.88/x
  3. Step 3: Cross multiply
    119,531.18x = 178,422.27 × 105,343.88
  4. Step 4: Simplify right side
    119,531.18x = 18,795,692,913.06
  5. Step 5: Solve for x
    x = 18,795,692,913.06/119,531.18
  6. Step 6: Final answer
    x = 157,245.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.