Home / 192,128.19-288,186.14-86,947.16

Finding the Fourth Proportional to 192,128.19, 288,186.14 and 86,947.16

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Solution

The fourth proportional to 192,128.19, 288,186.14 and 86,947.16 is: 130,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,128.19 : 288,186.14 = 86,947.16 : x
  2. Step 2: Convert to fraction form
    192,128.19/288,186.14 = 86,947.16/x
  3. Step 3: Cross multiply
    192,128.19x = 288,186.14 × 86,947.16
  4. Step 4: Simplify right side
    192,128.19x = 25,056,964,548.70
  5. Step 5: Solve for x
    x = 25,056,964,548.70/192,128.19
  6. Step 6: Final answer
    x = 130,417.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.