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Finding the Fourth Proportional to 159,189.66, 219,682.77 and 87,567.84

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Solution

The fourth proportional to 159,189.66, 219,682.77 and 87,567.84 is: 120,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,189.66 : 219,682.77 = 87,567.84 : x
  2. Step 2: Convert to fraction form
    159,189.66/219,682.77 = 87,567.84/x
  3. Step 3: Cross multiply
    159,189.66x = 219,682.77 × 87,567.84
  4. Step 4: Simplify right side
    159,189.66x = 19,237,145,654.12
  5. Step 5: Solve for x
    x = 19,237,145,654.12/159,189.66
  6. Step 6: Final answer
    x = 120,844.19

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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.