Home / 135,977.40-187,675.65-86,887.62

Finding the Fourth Proportional to 135,977.40, 187,675.65 and 86,887.62

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Solution

The fourth proportional to 135,977.40, 187,675.65 and 86,887.62 is: 119,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,977.40 : 187,675.65 = 86,887.62 : x
  2. Step 2: Convert to fraction form
    135,977.40/187,675.65 = 86,887.62/x
  3. Step 3: Cross multiply
    135,977.40x = 187,675.65 × 86,887.62
  4. Step 4: Simplify right side
    135,977.40x = 16,306,690,560.45
  5. Step 5: Solve for x
    x = 16,306,690,560.45/135,977.40
  6. Step 6: Final answer
    x = 119,922.06

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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.