Home / 138,816.70-191,566.83-75,154.48

Finding the Fourth Proportional to 138,816.70, 191,566.83 and 75,154.48

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Solution

The fourth proportional to 138,816.70, 191,566.83 and 75,154.48 is: 103,713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816.70 : 191,566.83 = 75,154.48 : x
  2. Step 2: Convert to fraction form
    138,816.70/191,566.83 = 75,154.48/x
  3. Step 3: Cross multiply
    138,816.70x = 191,566.83 × 75,154.48
  4. Step 4: Simplify right side
    138,816.70x = 14,397,105,493.90
  5. Step 5: Solve for x
    x = 14,397,105,493.90/138,816.70
  6. Step 6: Final answer
    x = 103,713.07

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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.