Home / 101,538.72-152,322.66-31,424.04

Finding the Fourth Proportional to 101,538.72, 152,322.66 and 31,424.04

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Solution

The fourth proportional to 101,538.72, 152,322.66 and 31,424.04 is: 47,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,538.72 : 152,322.66 = 31,424.04 : x
  2. Step 2: Convert to fraction form
    101,538.72/152,322.66 = 31,424.04/x
  3. Step 3: Cross multiply
    101,538.72x = 152,322.66 × 31,424.04
  4. Step 4: Simplify right side
    101,538.72x = 4,786,593,360.75
  5. Step 5: Solve for x
    x = 4,786,593,360.75/101,538.72
  6. Step 6: Final answer
    x = 47,140.57

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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.