Home / 158,596.74-218,869.82-86,979.38

Finding the Fourth Proportional to 158,596.74, 218,869.82 and 86,979.38

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Solution

The fourth proportional to 158,596.74, 218,869.82 and 86,979.38 is: 120,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,596.74 : 218,869.82 = 86,979.38 : x
  2. Step 2: Convert to fraction form
    158,596.74/218,869.82 = 86,979.38/x
  3. Step 3: Cross multiply
    158,596.74x = 218,869.82 × 86,979.38
  4. Step 4: Simplify right side
    158,596.74x = 19,037,161,244.31
  5. Step 5: Solve for x
    x = 19,037,161,244.31/158,596.74
  6. Step 6: Final answer
    x = 120,035.01

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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.