Home / 136,521.33-188,400.32-76,095.81

Finding the Fourth Proportional to 136,521.33, 188,400.32 and 76,095.81

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Solution

The fourth proportional to 136,521.33, 188,400.32 and 76,095.81 is: 105,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,521.33 : 188,400.32 = 76,095.81 : x
  2. Step 2: Convert to fraction form
    136,521.33/188,400.32 = 76,095.81/x
  3. Step 3: Cross multiply
    136,521.33x = 188,400.32 × 76,095.81
  4. Step 4: Simplify right side
    136,521.33x = 14,336,474,574.18
  5. Step 5: Solve for x
    x = 14,336,474,574.18/136,521.33
  6. Step 6: Final answer
    x = 105,012.71

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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.