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Finding the Fourth Proportional to 159,266.95, 219,788.43 and 87,646.97

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Solution

The fourth proportional to 159,266.95, 219,788.43 and 87,646.97 is: 120,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,266.95 : 219,788.43 = 87,646.97 : x
  2. Step 2: Convert to fraction form
    159,266.95/219,788.43 = 87,646.97/x
  3. Step 3: Cross multiply
    159,266.95x = 219,788.43 × 87,646.97
  4. Step 4: Simplify right side
    159,266.95x = 19,263,790,151.35
  5. Step 5: Solve for x
    x = 19,263,790,151.35/159,266.95
  6. Step 6: Final answer
    x = 120,952.84

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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.