Home / 165,845.12-229,009.80-157,332.38

Finding the Fourth Proportional to 165,845.12, 229,009.80 and 157,332.38

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Solution

The fourth proportional to 165,845.12, 229,009.80 and 157,332.38 is: 217,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,845.12 : 229,009.80 = 157,332.38 : x
  2. Step 2: Convert to fraction form
    165,845.12/229,009.80 = 157,332.38/x
  3. Step 3: Cross multiply
    165,845.12x = 229,009.80 × 157,332.38
  4. Step 4: Simplify right side
    165,845.12x = 36,030,657,449.85
  5. Step 5: Solve for x
    x = 36,030,657,449.85/165,845.12
  6. Step 6: Final answer
    x = 217,254.86

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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.