Home / 136,078.32-187,879.72-121,693.52

Finding the Fourth Proportional to 136,078.32, 187,879.72 and 121,693.52

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Solution

The fourth proportional to 136,078.32, 187,879.72 and 121,693.52 is: 168,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,078.32 : 187,879.72 = 121,693.52 : x
  2. Step 2: Convert to fraction form
    136,078.32/187,879.72 = 121,693.52/x
  3. Step 3: Cross multiply
    136,078.32x = 187,879.72 × 121,693.52
  4. Step 4: Simplify right side
    136,078.32x = 22,863,744,463.41
  5. Step 5: Solve for x
    x = 22,863,744,463.41/136,078.32
  6. Step 6: Final answer
    x = 168,019.01

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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.