Home / 138,994.04-191,812.08-75,331.82

Finding the Fourth Proportional to 138,994.04, 191,812.08 and 75,331.82

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Solution

The fourth proportional to 138,994.04, 191,812.08 and 75,331.82 is: 103,958.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,994.04 : 191,812.08 = 75,331.82 : x
  2. Step 2: Convert to fraction form
    138,994.04/191,812.08 = 75,331.82/x
  3. Step 3: Cross multiply
    138,994.04x = 191,812.08 × 75,331.82
  4. Step 4: Simplify right side
    138,994.04x = 14,449,553,084.39
  5. Step 5: Solve for x
    x = 14,449,553,084.39/138,994.04
  6. Step 6: Final answer
    x = 103,958.08

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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.