Home / 129,621.44-194,436.30-40,875.74

Finding the Fourth Proportional to 129,621.44, 194,436.30 and 40,875.74

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Solution

The fourth proportional to 129,621.44, 194,436.30 and 40,875.74 is: 61,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,621.44 : 194,436.30 = 40,875.74 : x
  2. Step 2: Convert to fraction form
    129,621.44/194,436.30 = 40,875.74/x
  3. Step 3: Cross multiply
    129,621.44x = 194,436.30 × 40,875.74
  4. Step 4: Simplify right side
    129,621.44x = 7,947,727,645.36
  5. Step 5: Solve for x
    x = 7,947,727,645.36/129,621.44
  6. Step 6: Final answer
    x = 61,314.92

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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.