Home / 220,052.16-303,721.92-139,590.72

Finding the Fourth Proportional to 220,052.16, 303,721.92 and 139,590.72

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Solution

The fourth proportional to 220,052.16, 303,721.92 and 139,590.72 is: 192,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,052.16 : 303,721.92 = 139,590.72 : x
  2. Step 2: Convert to fraction form
    220,052.16/303,721.92 = 139,590.72/x
  3. Step 3: Cross multiply
    220,052.16x = 303,721.92 × 139,590.72
  4. Step 4: Simplify right side
    220,052.16x = 42,396,761,492.58
  5. Step 5: Solve for x
    x = 42,396,761,492.58/220,052.16
  6. Step 6: Final answer
    x = 192,666.87

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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.