Home / 138,119.07-207,182.61-53,875.83

Finding the Fourth Proportional to 138,119.07, 207,182.61 and 53,875.83

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Solution

The fourth proportional to 138,119.07, 207,182.61 and 53,875.83 is: 80,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,119.07 : 207,182.61 = 53,875.83 : x
  2. Step 2: Convert to fraction form
    138,119.07/207,182.61 = 53,875.83/x
  3. Step 3: Cross multiply
    138,119.07x = 207,182.61 × 53,875.83
  4. Step 4: Simplify right side
    138,119.07x = 11,162,135,075.32
  5. Step 5: Solve for x
    x = 11,162,135,075.32/138,119.07
  6. Step 6: Final answer
    x = 80,815.31

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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.