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Finding the Fourth Proportional to 159,589.63, 220,235.19 and 87,972.22

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Solution

The fourth proportional to 159,589.63, 220,235.19 and 87,972.22 is: 121,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,589.63 : 220,235.19 = 87,972.22 : x
  2. Step 2: Convert to fraction form
    159,589.63/220,235.19 = 87,972.22/x
  3. Step 3: Cross multiply
    159,589.63x = 220,235.19 × 87,972.22
  4. Step 4: Simplify right side
    159,589.63x = 19,374,577,485.25
  5. Step 5: Solve for x
    x = 19,374,577,485.25/159,589.63
  6. Step 6: Final answer
    x = 121,402.49

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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.