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Finding the Fourth Proportional to 158,083.84, 218,160.92 and 86,463.86

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Solution

The fourth proportional to 158,083.84, 218,160.92 and 86,463.86 is: 119,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,083.84 : 218,160.92 = 86,463.86 : x
  2. Step 2: Convert to fraction form
    158,083.84/218,160.92 = 86,463.86/x
  3. Step 3: Cross multiply
    158,083.84x = 218,160.92 × 86,463.86
  4. Step 4: Simplify right side
    158,083.84x = 18,863,035,357.43
  5. Step 5: Solve for x
    x = 18,863,035,357.43/158,083.84
  6. Step 6: Final answer
    x = 119,322.98

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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.