Home / 129,698.72-194,599.92-70,465.04

Finding the Fourth Proportional to 129,698.72, 194,599.92 and 70,465.04

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Solution

The fourth proportional to 129,698.72, 194,599.92 and 70,465.04 is: 105,725.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,698.72 : 194,599.92 = 70,465.04 : x
  2. Step 2: Convert to fraction form
    129,698.72/194,599.92 = 70,465.04/x
  3. Step 3: Cross multiply
    129,698.72x = 194,599.92 × 70,465.04
  4. Step 4: Simplify right side
    129,698.72x = 13,712,491,146.80
  5. Step 5: Solve for x
    x = 13,712,491,146.80/129,698.72
  6. Step 6: Final answer
    x = 105,725.72

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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.