Home / 202,079.90-278,863.86-111,439.69

Finding the Fourth Proportional to 202,079.90, 278,863.86 and 111,439.69

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Solution

The fourth proportional to 202,079.90, 278,863.86 and 111,439.69 is: 153,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,079.90 : 278,863.86 = 111,439.69 : x
  2. Step 2: Convert to fraction form
    202,079.90/278,863.86 = 111,439.69/x
  3. Step 3: Cross multiply
    202,079.90x = 278,863.86 × 111,439.69
  4. Step 4: Simplify right side
    202,079.90x = 31,076,502,110.60
  5. Step 5: Solve for x
    x = 31,076,502,110.60/202,079.90
  6. Step 6: Final answer
    x = 153,783.24

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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.