Home / 202,357.13-279,257.29-111,712.86

Finding the Fourth Proportional to 202,357.13, 279,257.29 and 111,712.86

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Solution

The fourth proportional to 202,357.13, 279,257.29 and 111,712.86 is: 154,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,357.13 : 279,257.29 = 111,712.86 : x
  2. Step 2: Convert to fraction form
    202,357.13/279,257.29 = 111,712.86/x
  3. Step 3: Cross multiply
    202,357.13x = 279,257.29 × 111,712.86
  4. Step 4: Simplify right side
    202,357.13x = 31,196,630,262.47
  5. Step 5: Solve for x
    x = 31,196,630,262.47/202,357.13
  6. Step 6: Final answer
    x = 154,166.21

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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.