Home / 129,748.30-194,622.45-70,699.30

Finding the Fourth Proportional to 129,748.30, 194,622.45 and 70,699.30

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Solution

The fourth proportional to 129,748.30, 194,622.45 and 70,699.30 is: 106,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.30 : 194,622.45 = 70,699.30 : x
  2. Step 2: Convert to fraction form
    129,748.30/194,622.45 = 70,699.30/x
  3. Step 3: Cross multiply
    129,748.30x = 194,622.45 × 70,699.30
  4. Step 4: Simplify right side
    129,748.30x = 13,759,670,979.29
  5. Step 5: Solve for x
    x = 13,759,670,979.29/129,748.30
  6. Step 6: Final answer
    x = 106,048.95

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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.