Home / 129,870.18-194,812.68-36,383.22

Finding the Fourth Proportional to 129,870.18, 194,812.68 and 36,383.22

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Solution

The fourth proportional to 129,870.18, 194,812.68 and 36,383.22 is: 54,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,870.18 : 194,812.68 = 36,383.22 : x
  2. Step 2: Convert to fraction form
    129,870.18/194,812.68 = 36,383.22/x
  3. Step 3: Cross multiply
    129,870.18x = 194,812.68 × 36,383.22
  4. Step 4: Simplify right side
    129,870.18x = 7,087,912,595.23
  5. Step 5: Solve for x
    x = 7,087,912,595.23/129,870.18
  6. Step 6: Final answer
    x = 54,576.91

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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.