Home / 101,271.24-152,002.20-51,387.15

Finding the Fourth Proportional to 101,271.24, 152,002.20 and 51,387.15

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Solution

The fourth proportional to 101,271.24, 152,002.20 and 51,387.15 is: 77,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,271.24 : 152,002.20 = 51,387.15 : x
  2. Step 2: Convert to fraction form
    101,271.24/152,002.20 = 51,387.15/x
  3. Step 3: Cross multiply
    101,271.24x = 152,002.20 × 51,387.15
  4. Step 4: Simplify right side
    101,271.24x = 7,810,959,851.73
  5. Step 5: Solve for x
    x = 7,810,959,851.73/101,271.24
  6. Step 6: Final answer
    x = 77,129.10

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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.