Home / 158,504.39-218,735.02-86,887.43

Finding the Fourth Proportional to 158,504.39, 218,735.02 and 86,887.43

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Solution

The fourth proportional to 158,504.39, 218,735.02 and 86,887.43 is: 119,904.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,504.39 : 218,735.02 = 86,887.43 : x
  2. Step 2: Convert to fraction form
    158,504.39/218,735.02 = 86,887.43/x
  3. Step 3: Cross multiply
    158,504.39x = 218,735.02 × 86,887.43
  4. Step 4: Simplify right side
    158,504.39x = 19,005,323,738.80
  5. Step 5: Solve for x
    x = 19,005,323,738.80/158,504.39
  6. Step 6: Final answer
    x = 119,904.08

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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.