Home / 131,939.62-182,065.80-77,486.02

Finding the Fourth Proportional to 131,939.62, 182,065.80 and 77,486.02

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Solution

The fourth proportional to 131,939.62, 182,065.80 and 77,486.02 is: 106,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,939.62 : 182,065.80 = 77,486.02 : x
  2. Step 2: Convert to fraction form
    131,939.62/182,065.80 = 77,486.02/x
  3. Step 3: Cross multiply
    131,939.62x = 182,065.80 × 77,486.02
  4. Step 4: Simplify right side
    131,939.62x = 14,107,554,220.12
  5. Step 5: Solve for x
    x = 14,107,554,220.12/131,939.62
  6. Step 6: Final answer
    x = 106,924.32

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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.