Home / 138,666.06-191,359.26-75,003.84

Finding the Fourth Proportional to 138,666.06, 191,359.26 and 75,003.84

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Solution

The fourth proportional to 138,666.06, 191,359.26 and 75,003.84 is: 103,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,666.06 : 191,359.26 = 75,003.84 : x
  2. Step 2: Convert to fraction form
    138,666.06/191,359.26 = 75,003.84/x
  3. Step 3: Cross multiply
    138,666.06x = 191,359.26 × 75,003.84
  4. Step 4: Simplify right side
    138,666.06x = 14,352,679,319.56
  5. Step 5: Solve for x
    x = 14,352,679,319.56/138,666.06
  6. Step 6: Final answer
    x = 103,505.35

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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.