Home / 158,035.38-218,085.66-86,414.64

Finding the Fourth Proportional to 158,035.38, 218,085.66 and 86,414.64

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Solution

The fourth proportional to 158,035.38, 218,085.66 and 86,414.64 is: 119,250.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,035.38 : 218,085.66 = 86,414.64 : x
  2. Step 2: Convert to fraction form
    158,035.38/218,085.66 = 86,414.64/x
  3. Step 3: Cross multiply
    158,035.38x = 218,085.66 × 86,414.64
  4. Step 4: Simplify right side
    158,035.38x = 18,845,793,798.06
  5. Step 5: Solve for x
    x = 18,845,793,798.06/158,035.38
  6. Step 6: Final answer
    x = 119,250.47

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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.