Home / 158,324.32-218,488.26-86,704.84

Finding the Fourth Proportional to 158,324.32, 218,488.26 and 86,704.84

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Solution

The fourth proportional to 158,324.32, 218,488.26 and 86,704.84 is: 119,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,324.32 : 218,488.26 = 86,704.84 : x
  2. Step 2: Convert to fraction form
    158,324.32/218,488.26 = 86,704.84/x
  3. Step 3: Cross multiply
    158,324.32x = 218,488.26 × 86,704.84
  4. Step 4: Simplify right side
    158,324.32x = 18,943,989,625.18
  5. Step 5: Solve for x
    x = 18,943,989,625.18/158,324.32
  6. Step 6: Final answer
    x = 119,653.06

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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.