Home / 129,454.02-194,200.16-66,309.86

Finding the Fourth Proportional to 129,454.02, 194,200.16 and 66,309.86

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Solution

The fourth proportional to 129,454.02, 194,200.16 and 66,309.86 is: 99,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,454.02 : 194,200.16 = 66,309.86 : x
  2. Step 2: Convert to fraction form
    129,454.02/194,200.16 = 66,309.86/x
  3. Step 3: Cross multiply
    129,454.02x = 194,200.16 × 66,309.86
  4. Step 4: Simplify right side
    129,454.02x = 12,877,384,119.03
  5. Step 5: Solve for x
    x = 12,877,384,119.03/129,454.02
  6. Step 6: Final answer
    x = 99,474.58

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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.