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Finding the Fourth Proportional to 159,587.52, 220,226.57 and 87,967.82

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Solution

The fourth proportional to 159,587.52, 220,226.57 and 87,967.82 is: 121,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,587.52 : 220,226.57 = 87,967.82 : x
  2. Step 2: Convert to fraction form
    159,587.52/220,226.57 = 87,967.82/x
  3. Step 3: Cross multiply
    159,587.52x = 220,226.57 × 87,967.82
  4. Step 4: Simplify right side
    159,587.52x = 19,372,851,956.99
  5. Step 5: Solve for x
    x = 19,372,851,956.99/159,587.52
  6. Step 6: Final answer
    x = 121,393.28

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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.