Home / 154,029.48-212,553.08-86,032.91

Finding the Fourth Proportional to 154,029.48, 212,553.08 and 86,032.91

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Solution

The fourth proportional to 154,029.48, 212,553.08 and 86,032.91 is: 118,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,029.48 : 212,553.08 = 86,032.91 : x
  2. Step 2: Convert to fraction form
    154,029.48/212,553.08 = 86,032.91/x
  3. Step 3: Cross multiply
    154,029.48x = 212,553.08 × 86,032.91
  4. Step 4: Simplify right side
    154,029.48x = 18,286,560,425.70
  5. Step 5: Solve for x
    x = 18,286,560,425.70/154,029.48
  6. Step 6: Final answer
    x = 118,721.18

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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.