Home / 158,323.20-218,490.96-86,710.08

Finding the Fourth Proportional to 158,323.20, 218,490.96 and 86,710.08

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Solution

The fourth proportional to 158,323.20, 218,490.96 and 86,710.08 is: 119,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,323.20 : 218,490.96 = 86,710.08 : x
  2. Step 2: Convert to fraction form
    158,323.20/218,490.96 = 86,710.08/x
  3. Step 3: Cross multiply
    158,323.20x = 218,490.96 × 86,710.08
  4. Step 4: Simplify right side
    158,323.20x = 18,945,368,620.88
  5. Step 5: Solve for x
    x = 18,945,368,620.88/158,323.20
  6. Step 6: Final answer
    x = 119,662.62

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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.