Home / 202,060.27-278,840.95-111,424.20

Finding the Fourth Proportional to 202,060.27, 278,840.95 and 111,424.20

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Solution

The fourth proportional to 202,060.27, 278,840.95 and 111,424.20 is: 153,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,060.27 : 278,840.95 = 111,424.20 : x
  2. Step 2: Convert to fraction form
    202,060.27/278,840.95 = 111,424.20/x
  3. Step 3: Cross multiply
    202,060.27x = 278,840.95 × 111,424.20
  4. Step 4: Simplify right side
    202,060.27x = 31,069,629,780.99
  5. Step 5: Solve for x
    x = 31,069,629,780.99/202,060.27
  6. Step 6: Final answer
    x = 153,764.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.