Home / 101,271.38-152,002.40-51,387.27

Finding the Fourth Proportional to 101,271.38, 152,002.40 and 51,387.27

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Solution

The fourth proportional to 101,271.38, 152,002.40 and 51,387.27 is: 77,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,271.38 : 152,002.40 = 51,387.27 : x
  2. Step 2: Convert to fraction form
    101,271.38/152,002.40 = 51,387.27/x
  3. Step 3: Cross multiply
    101,271.38x = 152,002.40 × 51,387.27
  4. Step 4: Simplify right side
    101,271.38x = 7,810,988,369.45
  5. Step 5: Solve for x
    x = 7,810,988,369.45/101,271.38
  6. Step 6: Final answer
    x = 77,129.28

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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.