Home / 152,943.25-229,179.09-81,875.32

Finding the Fourth Proportional to 152,943.25, 229,179.09 and 81,875.32

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Solution

The fourth proportional to 152,943.25, 229,179.09 and 81,875.32 is: 122,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,943.25 : 229,179.09 = 81,875.32 : x
  2. Step 2: Convert to fraction form
    152,943.25/229,179.09 = 81,875.32/x
  3. Step 3: Cross multiply
    152,943.25x = 229,179.09 × 81,875.32
  4. Step 4: Simplify right side
    152,943.25x = 18,764,110,921.68
  5. Step 5: Solve for x
    x = 18,764,110,921.68/152,943.25
  6. Step 6: Final answer
    x = 122,686.75

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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.