Home / 129,348.20-194,243.70-70,299.20

Finding the Fourth Proportional to 129,348.20, 194,243.70 and 70,299.20

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Solution

The fourth proportional to 129,348.20, 194,243.70 and 70,299.20 is: 105,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,348.20 : 194,243.70 = 70,299.20 : x
  2. Step 2: Convert to fraction form
    129,348.20/194,243.70 = 70,299.20/x
  3. Step 3: Cross multiply
    129,348.20x = 194,243.70 × 70,299.20
  4. Step 4: Simplify right side
    129,348.20x = 13,655,176,715.04
  5. Step 5: Solve for x
    x = 13,655,176,715.04/129,348.20
  6. Step 6: Final answer
    x = 105,569.13

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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.