Home / 166,616.51-229,929.71-90,135.30

Finding the Fourth Proportional to 166,616.51, 229,929.71 and 90,135.30

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Solution

The fourth proportional to 166,616.51, 229,929.71 and 90,135.30 is: 124,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,616.51 : 229,929.71 = 90,135.30 : x
  2. Step 2: Convert to fraction form
    166,616.51/229,929.71 = 90,135.30/x
  3. Step 3: Cross multiply
    166,616.51x = 229,929.71 × 90,135.30
  4. Step 4: Simplify right side
    166,616.51x = 20,724,782,507.97
  5. Step 5: Solve for x
    x = 20,724,782,507.97/166,616.51
  6. Step 6: Final answer
    x = 124,386.13

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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.