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Finding the Fourth Proportional to 159,500.48, 220,109.58 and 87,878.84

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Solution

The fourth proportional to 159,500.48, 220,109.58 and 87,878.84 is: 121,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,500.48 : 220,109.58 = 87,878.84 : x
  2. Step 2: Convert to fraction form
    159,500.48/220,109.58 = 87,878.84/x
  3. Step 3: Cross multiply
    159,500.48x = 220,109.58 × 87,878.84
  4. Step 4: Simplify right side
    159,500.48x = 19,342,974,563.29
  5. Step 5: Solve for x
    x = 19,342,974,563.29/159,500.48
  6. Step 6: Final answer
    x = 121,272.20

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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.