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Finding the Fourth Proportional to 159,605.37, 220,256.08 and 87,983.82

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Solution

The fourth proportional to 159,605.37, 220,256.08 and 87,983.82 is: 121,418.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,605.37 : 220,256.08 = 87,983.82 : x
  2. Step 2: Convert to fraction form
    159,605.37/220,256.08 = 87,983.82/x
  3. Step 3: Cross multiply
    159,605.37x = 220,256.08 × 87,983.82
  4. Step 4: Simplify right side
    159,605.37x = 19,378,971,076.67
  5. Step 5: Solve for x
    x = 19,378,971,076.67/159,605.37
  6. Step 6: Final answer
    x = 121,418.04

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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.