Home / 140,148.92-210,098.36-51,381.72

Finding the Fourth Proportional to 140,148.92, 210,098.36 and 51,381.72

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Solution

The fourth proportional to 140,148.92, 210,098.36 and 51,381.72 is: 77,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,148.92 : 210,098.36 = 51,381.72 : x
  2. Step 2: Convert to fraction form
    140,148.92/210,098.36 = 51,381.72/x
  3. Step 3: Cross multiply
    140,148.92x = 210,098.36 × 51,381.72
  4. Step 4: Simplify right side
    140,148.92x = 10,795,215,105.98
  5. Step 5: Solve for x
    x = 10,795,215,105.98/140,148.92
  6. Step 6: Final answer
    x = 77,026.74

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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.