Home / 165,689.10-248,287.89-121,698.06

Finding the Fourth Proportional to 165,689.10, 248,287.89 and 121,698.06

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Solution

The fourth proportional to 165,689.10, 248,287.89 and 121,698.06 is: 182,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,689.10 : 248,287.89 = 121,698.06 : x
  2. Step 2: Convert to fraction form
    165,689.10/248,287.89 = 121,698.06/x
  3. Step 3: Cross multiply
    165,689.10x = 248,287.89 × 121,698.06
  4. Step 4: Simplify right side
    165,689.10x = 30,216,154,534.49
  5. Step 5: Solve for x
    x = 30,216,154,534.49/165,689.10
  6. Step 6: Final answer
    x = 182,366.58

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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.