Home / 137,482.17-189,737.62-80,118.38

Finding the Fourth Proportional to 137,482.17, 189,737.62 and 80,118.38

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Solution

The fourth proportional to 137,482.17, 189,737.62 and 80,118.38 is: 110,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,482.17 : 189,737.62 = 80,118.38 : x
  2. Step 2: Convert to fraction form
    137,482.17/189,737.62 = 80,118.38/x
  3. Step 3: Cross multiply
    137,482.17x = 189,737.62 × 80,118.38
  4. Step 4: Simplify right side
    137,482.17x = 15,201,469,590.47
  5. Step 5: Solve for x
    x = 15,201,469,590.47/137,482.17
  6. Step 6: Final answer
    x = 110,570.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.