Home / 158,494.47-218,727.86-86,874.41

Finding the Fourth Proportional to 158,494.47, 218,727.86 and 86,874.41

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Solution

The fourth proportional to 158,494.47, 218,727.86 and 86,874.41 is: 119,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,494.47 : 218,727.86 = 86,874.41 : x
  2. Step 2: Convert to fraction form
    158,494.47/218,727.86 = 86,874.41/x
  3. Step 3: Cross multiply
    158,494.47x = 218,727.86 × 86,874.41
  4. Step 4: Simplify right side
    158,494.47x = 19,001,852,260.05
  5. Step 5: Solve for x
    x = 19,001,852,260.05/158,494.47
  6. Step 6: Final answer
    x = 119,889.69

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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.