Home / 136,926.55-188,958.61-76,497.21

Finding the Fourth Proportional to 136,926.55, 188,958.61 and 76,497.21

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Solution

The fourth proportional to 136,926.55, 188,958.61 and 76,497.21 is: 105,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,926.55 : 188,958.61 = 76,497.21 : x
  2. Step 2: Convert to fraction form
    136,926.55/188,958.61 = 76,497.21/x
  3. Step 3: Cross multiply
    136,926.55x = 188,958.61 × 76,497.21
  4. Step 4: Simplify right side
    136,926.55x = 14,454,806,470.48
  5. Step 5: Solve for x
    x = 14,454,806,470.48/136,926.55
  6. Step 6: Final answer
    x = 105,566.13

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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.