Home / 129,901.10-194,916.45-73,784.30

Finding the Fourth Proportional to 129,901.10, 194,916.45 and 73,784.30

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Solution

The fourth proportional to 129,901.10, 194,916.45 and 73,784.30 is: 110,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,901.10 : 194,916.45 = 73,784.30 : x
  2. Step 2: Convert to fraction form
    129,901.10/194,916.45 = 73,784.30/x
  3. Step 3: Cross multiply
    129,901.10x = 194,916.45 × 73,784.30
  4. Step 4: Simplify right side
    129,901.10x = 14,381,773,821.74
  5. Step 5: Solve for x
    x = 14,381,773,821.74/129,901.10
  6. Step 6: Final answer
    x = 110,713.26

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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.