Home / 101,130.28-151,711.26-31,002.28

Finding the Fourth Proportional to 101,130.28, 151,711.26 and 31,002.28

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Solution

The fourth proportional to 101,130.28, 151,711.26 and 31,002.28 is: 46,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,130.28 : 151,711.26 = 31,002.28 : x
  2. Step 2: Convert to fraction form
    101,130.28/151,711.26 = 31,002.28/x
  3. Step 3: Cross multiply
    101,130.28x = 151,711.26 × 31,002.28
  4. Step 4: Simplify right side
    101,130.28x = 4,703,394,961.67
  5. Step 5: Solve for x
    x = 4,703,394,961.67/101,130.28
  6. Step 6: Final answer
    x = 46,508.28

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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.