Home / 138,816.59-191,566.94-75,154.37

Finding the Fourth Proportional to 138,816.59, 191,566.94 and 75,154.37

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Solution

The fourth proportional to 138,816.59, 191,566.94 and 75,154.37 is: 103,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,816.59 : 191,566.94 = 75,154.37 : x
  2. Step 2: Convert to fraction form
    138,816.59/191,566.94 = 75,154.37/x
  3. Step 3: Cross multiply
    138,816.59x = 191,566.94 × 75,154.37
  4. Step 4: Simplify right side
    138,816.59x = 14,397,091,354.92
  5. Step 5: Solve for x
    x = 14,397,091,354.92/138,816.59
  6. Step 6: Final answer
    x = 103,713.05

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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.