Home / 158,124.33-218,216.73-86,504.35

Finding the Fourth Proportional to 158,124.33, 218,216.73 and 86,504.35

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Solution

The fourth proportional to 158,124.33, 218,216.73 and 86,504.35 is: 119,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,124.33 : 218,216.73 = 86,504.35 : x
  2. Step 2: Convert to fraction form
    158,124.33/218,216.73 = 86,504.35/x
  3. Step 3: Cross multiply
    158,124.33x = 218,216.73 × 86,504.35
  4. Step 4: Simplify right side
    158,124.33x = 18,876,696,984.94
  5. Step 5: Solve for x
    x = 18,876,696,984.94/158,124.33
  6. Step 6: Final answer
    x = 119,378.82

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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.