Home / 158,520.33-218,582.37-101,068.65

Finding the Fourth Proportional to 158,520.33, 218,582.37 and 101,068.65

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Solution

The fourth proportional to 158,520.33, 218,582.37 and 101,068.65 is: 139,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,520.33 : 218,582.37 = 101,068.65 : x
  2. Step 2: Convert to fraction form
    158,520.33/218,582.37 = 101,068.65/x
  3. Step 3: Cross multiply
    158,520.33x = 218,582.37 × 101,068.65
  4. Step 4: Simplify right side
    158,520.33x = 22,091,825,049.70
  5. Step 5: Solve for x
    x = 22,091,825,049.70/158,520.33
  6. Step 6: Final answer
    x = 139,362.72

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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.