Home / 153,009.38-229,513.82-40,689.65

Finding the Fourth Proportional to 153,009.38, 229,513.82 and 40,689.65

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Solution

The fourth proportional to 153,009.38, 229,513.82 and 40,689.65 is: 61,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,009.38 : 229,513.82 = 40,689.65 : x
  2. Step 2: Convert to fraction form
    153,009.38/229,513.82 = 40,689.65/x
  3. Step 3: Cross multiply
    153,009.38x = 229,513.82 × 40,689.65
  4. Step 4: Simplify right side
    153,009.38x = 9,338,835,654.95
  5. Step 5: Solve for x
    x = 9,338,835,654.95/153,009.38
  6. Step 6: Final answer
    x = 61,034.40

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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.