Home / 129,451.32-194,112.04-75,433.50

Finding the Fourth Proportional to 129,451.32, 194,112.04 and 75,433.50

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Solution

The fourth proportional to 129,451.32, 194,112.04 and 75,433.50 is: 113,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,451.32 : 194,112.04 = 75,433.50 : x
  2. Step 2: Convert to fraction form
    129,451.32/194,112.04 = 75,433.50/x
  3. Step 3: Cross multiply
    129,451.32x = 194,112.04 × 75,433.50
  4. Step 4: Simplify right side
    129,451.32x = 14,642,550,663.63
  5. Step 5: Solve for x
    x = 14,642,550,663.63/129,451.32
  6. Step 6: Final answer
    x = 113,112.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.