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Finding the Fourth Proportional to 158,363.33, 218,542.13 and 86,743.13

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Solution

The fourth proportional to 158,363.33, 218,542.13 and 86,743.13 is: 119,705.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,363.33 : 218,542.13 = 86,743.13 : x
  2. Step 2: Convert to fraction form
    158,363.33/218,542.13 = 86,743.13/x
  3. Step 3: Cross multiply
    158,363.33x = 218,542.13 × 86,743.13
  4. Step 4: Simplify right side
    158,363.33x = 18,957,026,866.64
  5. Step 5: Solve for x
    x = 18,957,026,866.64/158,363.33
  6. Step 6: Final answer
    x = 119,705.92

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1.5x scale

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.