Home / 165,489.44-248,389.65-86,660.24

Finding the Fourth Proportional to 165,489.44, 248,389.65 and 86,660.24

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Solution

The fourth proportional to 165,489.44, 248,389.65 and 86,660.24 is: 130,071.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,489.44 : 248,389.65 = 86,660.24 : x
  2. Step 2: Convert to fraction form
    165,489.44/248,389.65 = 86,660.24/x
  3. Step 3: Cross multiply
    165,489.44x = 248,389.65 × 86,660.24
  4. Step 4: Simplify right side
    165,489.44x = 21,525,506,682.52
  5. Step 5: Solve for x
    x = 21,525,506,682.52/165,489.44
  6. Step 6: Final answer
    x = 130,071.78

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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.