Home / 115,262.84-172,915.05-52,112.69

Finding the Fourth Proportional to 115,262.84, 172,915.05 and 52,112.69

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Solution

The fourth proportional to 115,262.84, 172,915.05 and 52,112.69 is: 78,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,262.84 : 172,915.05 = 52,112.69 : x
  2. Step 2: Convert to fraction form
    115,262.84/172,915.05 = 52,112.69/x
  3. Step 3: Cross multiply
    115,262.84x = 172,915.05 × 52,112.69
  4. Step 4: Simplify right side
    115,262.84x = 9,011,067,271.85
  5. Step 5: Solve for x
    x = 9,011,067,271.85/115,262.84
  6. Step 6: Final answer
    x = 78,178.42

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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.