Home / 158,550.03-218,798.97-86,928.53

Finding the Fourth Proportional to 158,550.03, 218,798.97 and 86,928.53

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Solution

The fourth proportional to 158,550.03, 218,798.97 and 86,928.53 is: 119,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,550.03 : 218,798.97 = 86,928.53 : x
  2. Step 2: Convert to fraction form
    158,550.03/218,798.97 = 86,928.53/x
  3. Step 3: Cross multiply
    158,550.03x = 218,798.97 × 86,928.53
  4. Step 4: Simplify right side
    158,550.03x = 19,019,872,827.61
  5. Step 5: Solve for x
    x = 19,019,872,827.61/158,550.03
  6. Step 6: Final answer
    x = 119,961.33

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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.