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Finding the Fourth Proportional to 158,377.30, 218,560.59 and 86,757.30

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Solution

The fourth proportional to 158,377.30, 218,560.59 and 86,757.30 is: 119,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,377.30 : 218,560.59 = 86,757.30 : x
  2. Step 2: Convert to fraction form
    158,377.30/218,560.59 = 86,757.30/x
  3. Step 3: Cross multiply
    158,377.30x = 218,560.59 × 86,757.30
  4. Step 4: Simplify right side
    158,377.30x = 18,961,726,674.81
  5. Step 5: Solve for x
    x = 18,961,726,674.81/158,377.30
  6. Step 6: Final answer
    x = 119,725.03

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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.