Home / 136,961.25-189,064.71-83,263.41

Finding the Fourth Proportional to 136,961.25, 189,064.71 and 83,263.41

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Solution

The fourth proportional to 136,961.25, 189,064.71 and 83,263.41 is: 114,938.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.25 : 189,064.71 = 83,263.41 : x
  2. Step 2: Convert to fraction form
    136,961.25/189,064.71 = 83,263.41/x
  3. Step 3: Cross multiply
    136,961.25x = 189,064.71 × 83,263.41
  4. Step 4: Simplify right side
    136,961.25x = 15,742,172,465.26
  5. Step 5: Solve for x
    x = 15,742,172,465.26/136,961.25
  6. Step 6: Final answer
    x = 114,938.88

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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.