Home / 135,723.65-187,281.59-75,278.61

Finding the Fourth Proportional to 135,723.65, 187,281.59 and 75,278.61

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Solution

The fourth proportional to 135,723.65, 187,281.59 and 75,278.61 is: 103,875.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,723.65 : 187,281.59 = 75,278.61 : x
  2. Step 2: Convert to fraction form
    135,723.65/187,281.59 = 75,278.61/x
  3. Step 3: Cross multiply
    135,723.65x = 187,281.59 × 75,278.61
  4. Step 4: Simplify right side
    135,723.65x = 14,098,297,961.99
  5. Step 5: Solve for x
    x = 14,098,297,961.99/135,723.65
  6. Step 6: Final answer
    x = 103,875.03

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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.