Home / 136,530.40-188,356.71-82,795.81

Finding the Fourth Proportional to 136,530.40, 188,356.71 and 82,795.81

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Solution

The fourth proportional to 136,530.40, 188,356.71 and 82,795.81 is: 114,224.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,530.40 : 188,356.71 = 82,795.81 : x
  2. Step 2: Convert to fraction form
    136,530.40/188,356.71 = 82,795.81/x
  3. Step 3: Cross multiply
    136,530.40x = 188,356.71 × 82,795.81
  4. Step 4: Simplify right side
    136,530.40x = 15,595,146,373.39
  5. Step 5: Solve for x
    x = 15,595,146,373.39/136,530.40
  6. Step 6: Final answer
    x = 114,224.72

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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.