Home / 140,837.68-194,356.08-77,175.48

Finding the Fourth Proportional to 140,837.68, 194,356.08 and 77,175.48

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Solution

The fourth proportional to 140,837.68, 194,356.08 and 77,175.48 is: 106,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,837.68 : 194,356.08 = 77,175.48 : x
  2. Step 2: Convert to fraction form
    140,837.68/194,356.08 = 77,175.48/x
  3. Step 3: Cross multiply
    140,837.68x = 194,356.08 × 77,175.48
  4. Step 4: Simplify right side
    140,837.68x = 14,999,523,764.92
  5. Step 5: Solve for x
    x = 14,999,523,764.92/140,837.68
  6. Step 6: Final answer
    x = 106,502.21

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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.