Home / 129,374.79-194,000.73-45,124.72

Finding the Fourth Proportional to 129,374.79, 194,000.73 and 45,124.72

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Solution

The fourth proportional to 129,374.79, 194,000.73 and 45,124.72 is: 67,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,374.79 : 194,000.73 = 45,124.72 : x
  2. Step 2: Convert to fraction form
    129,374.79/194,000.73 = 45,124.72/x
  3. Step 3: Cross multiply
    129,374.79x = 194,000.73 × 45,124.72
  4. Step 4: Simplify right side
    129,374.79x = 8,754,228,621.05
  5. Step 5: Solve for x
    x = 8,754,228,621.05/129,374.79
  6. Step 6: Final answer
    x = 67,665.65

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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.