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Finding the Fourth Proportional to 159,172.57, 219,653.56 and 87,552.59

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Solution

The fourth proportional to 159,172.57, 219,653.56 and 87,552.59 is: 120,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,172.57 : 219,653.56 = 87,552.59 : x
  2. Step 2: Convert to fraction form
    159,172.57/219,653.56 = 87,552.59/x
  3. Step 3: Cross multiply
    159,172.57x = 219,653.56 × 87,552.59
  4. Step 4: Simplify right side
    159,172.57x = 19,231,236,763.57
  5. Step 5: Solve for x
    x = 19,231,236,763.57/159,172.57
  6. Step 6: Final answer
    x = 120,820.04

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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.