Home / 138,528.78-191,081.07-96,071.82

Finding the Fourth Proportional to 138,528.78, 191,081.07 and 96,071.82

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Solution

The fourth proportional to 138,528.78, 191,081.07 and 96,071.82 is: 132,517.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,528.78 : 191,081.07 = 96,071.82 : x
  2. Step 2: Convert to fraction form
    138,528.78/191,081.07 = 96,071.82/x
  3. Step 3: Cross multiply
    138,528.78x = 191,081.07 × 96,071.82
  4. Step 4: Simplify right side
    138,528.78x = 18,357,506,162.45
  5. Step 5: Solve for x
    x = 18,357,506,162.45/138,528.78
  6. Step 6: Final answer
    x = 132,517.63

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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.