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Finding the Fourth Proportional to 159,188.47, 219,675.42 and 87,568.45

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Solution

The fourth proportional to 159,188.47, 219,675.42 and 87,568.45 is: 120,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,188.47 : 219,675.42 = 87,568.45 : x
  2. Step 2: Convert to fraction form
    159,188.47/219,675.42 = 87,568.45/x
  3. Step 3: Cross multiply
    159,188.47x = 219,675.42 × 87,568.45
  4. Step 4: Simplify right side
    159,188.47x = 19,236,636,032.50
  5. Step 5: Solve for x
    x = 19,236,636,032.50/159,188.47
  6. Step 6: Final answer
    x = 120,841.89

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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.