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Finding the Fourth Proportional to 159,181.74, 219,676.59 and 87,567.21

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Solution

The fourth proportional to 159,181.74, 219,676.59 and 87,567.21 is: 120,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,181.74 : 219,676.59 = 87,567.21 : x
  2. Step 2: Convert to fraction form
    159,181.74/219,676.59 = 87,567.21/x
  3. Step 3: Cross multiply
    159,181.74x = 219,676.59 × 87,567.21
  4. Step 4: Simplify right side
    159,181.74x = 19,236,466,088.61
  5. Step 5: Solve for x
    x = 19,236,466,088.61/159,181.74
  6. Step 6: Final answer
    x = 120,845.93

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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.