Home / 140,732.72-194,211.04-77,071.76

Finding the Fourth Proportional to 140,732.72, 194,211.04 and 77,071.76

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Solution

The fourth proportional to 140,732.72, 194,211.04 and 77,071.76 is: 106,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,732.72 : 194,211.04 = 77,071.76 : x
  2. Step 2: Convert to fraction form
    140,732.72/194,211.04 = 77,071.76/x
  3. Step 3: Cross multiply
    140,732.72x = 194,211.04 × 77,071.76
  4. Step 4: Simplify right side
    140,732.72x = 14,968,186,664.23
  5. Step 5: Solve for x
    x = 14,968,186,664.23/140,732.72
  6. Step 6: Final answer
    x = 106,358.97

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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.