Home / 147,339.30-203,352.69-86,924.78

Finding the Fourth Proportional to 147,339.30, 203,352.69 and 86,924.78

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Solution

The fourth proportional to 147,339.30, 203,352.69 and 86,924.78 is: 119,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,339.30 : 203,352.69 = 86,924.78 : x
  2. Step 2: Convert to fraction form
    147,339.30/203,352.69 = 86,924.78/x
  3. Step 3: Cross multiply
    147,339.30x = 203,352.69 × 86,924.78
  4. Step 4: Simplify right side
    147,339.30x = 17,676,387,912.44
  5. Step 5: Solve for x
    x = 17,676,387,912.44/147,339.30
  6. Step 6: Final answer
    x = 119,970.62

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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.