Home / 136,574.40-188,405.68-91,263.51

Finding the Fourth Proportional to 136,574.40, 188,405.68 and 91,263.51

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Solution

The fourth proportional to 136,574.40, 188,405.68 and 91,263.51 is: 125,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,574.40 : 188,405.68 = 91,263.51 : x
  2. Step 2: Convert to fraction form
    136,574.40/188,405.68 = 91,263.51/x
  3. Step 3: Cross multiply
    136,574.40x = 188,405.68 × 91,263.51
  4. Step 4: Simplify right side
    136,574.40x = 17,194,563,660.74
  5. Step 5: Solve for x
    x = 17,194,563,660.74/136,574.40
  6. Step 6: Final answer
    x = 125,898.88

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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.