Home / 136,740.25-188,711.01-76,322.65

Finding the Fourth Proportional to 136,740.25, 188,711.01 and 76,322.65

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Solution

The fourth proportional to 136,740.25, 188,711.01 and 76,322.65 is: 105,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,740.25 : 188,711.01 = 76,322.65 : x
  2. Step 2: Convert to fraction form
    136,740.25/188,711.01 = 76,322.65/x
  3. Step 3: Cross multiply
    136,740.25x = 188,711.01 × 76,322.65
  4. Step 4: Simplify right side
    136,740.25x = 14,402,924,367.38
  5. Step 5: Solve for x
    x = 14,402,924,367.38/136,740.25
  6. Step 6: Final answer
    x = 105,330.54

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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.