Home / 129,160.98-193,816.62-54,275.40

Finding the Fourth Proportional to 129,160.98, 193,816.62 and 54,275.40

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Solution

The fourth proportional to 129,160.98, 193,816.62 and 54,275.40 is: 81,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,160.98 : 193,816.62 = 54,275.40 : x
  2. Step 2: Convert to fraction form
    129,160.98/193,816.62 = 54,275.40/x
  3. Step 3: Cross multiply
    129,160.98x = 193,816.62 × 54,275.40
  4. Step 4: Simplify right side
    129,160.98x = 10,519,474,577.15
  5. Step 5: Solve for x
    x = 10,519,474,577.15/129,160.98
  6. Step 6: Final answer
    x = 81,444.68

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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.