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Finding the Fourth Proportional to 159,554.39, 220,190.13 and 87,937.02

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Solution

The fourth proportional to 159,554.39, 220,190.13 and 87,937.02 is: 121,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,554.39 : 220,190.13 = 87,937.02 : x
  2. Step 2: Convert to fraction form
    159,554.39/220,190.13 = 87,937.02/x
  3. Step 3: Cross multiply
    159,554.39x = 220,190.13 × 87,937.02
  4. Step 4: Simplify right side
    159,554.39x = 19,362,863,865.61
  5. Step 5: Solve for x
    x = 19,362,863,865.61/159,554.39
  6. Step 6: Final answer
    x = 121,355.89

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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.