Home / 138,668.76-191,363.04-75,006.27

Finding the Fourth Proportional to 138,668.76, 191,363.04 and 75,006.27

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Solution

The fourth proportional to 138,668.76, 191,363.04 and 75,006.27 is: 103,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,668.76 : 191,363.04 = 75,006.27 : x
  2. Step 2: Convert to fraction form
    138,668.76/191,363.04 = 75,006.27/x
  3. Step 3: Cross multiply
    138,668.76x = 191,363.04 × 75,006.27
  4. Step 4: Simplify right side
    138,668.76x = 14,353,427,846.26
  5. Step 5: Solve for x
    x = 14,353,427,846.26/138,668.76
  6. Step 6: Final answer
    x = 103,508.73

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1.5x scale

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.