Home / 129,474.32-193,953.02-102,865.28

Finding the Fourth Proportional to 129,474.32, 193,953.02 and 102,865.28

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Solution

The fourth proportional to 129,474.32, 193,953.02 and 102,865.28 is: 154,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,474.32 : 193,953.02 = 102,865.28 : x
  2. Step 2: Convert to fraction form
    129,474.32/193,953.02 = 102,865.28/x
  3. Step 3: Cross multiply
    129,474.32x = 193,953.02 × 102,865.28
  4. Step 4: Simplify right side
    129,474.32x = 19,951,030,225.05
  5. Step 5: Solve for x
    x = 19,951,030,225.05/129,474.32
  6. Step 6: Final answer
    x = 154,092.57

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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.