Home / 101,521.24-151,950.66-91,821.40

Finding the Fourth Proportional to 101,521.24, 151,950.66 and 91,821.40

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Solution

The fourth proportional to 101,521.24, 151,950.66 and 91,821.40 is: 137,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,521.24 : 151,950.66 = 91,821.40 : x
  2. Step 2: Convert to fraction form
    101,521.24/151,950.66 = 91,821.40/x
  3. Step 3: Cross multiply
    101,521.24x = 151,950.66 × 91,821.40
  4. Step 4: Simplify right side
    101,521.24x = 13,952,322,332.12
  5. Step 5: Solve for x
    x = 13,952,322,332.12/101,521.24
  6. Step 6: Final answer
    x = 137,432.54

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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.