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Finding the Fourth Proportional to 159,149.22, 219,630.51 and 87,533.85

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Solution

The fourth proportional to 159,149.22, 219,630.51 and 87,533.85 is: 120,799.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,149.22 : 219,630.51 = 87,533.85 : x
  2. Step 2: Convert to fraction form
    159,149.22/219,630.51 = 87,533.85/x
  3. Step 3: Cross multiply
    159,149.22x = 219,630.51 × 87,533.85
  4. Step 4: Simplify right side
    159,149.22x = 19,225,104,117.76
  5. Step 5: Solve for x
    x = 19,225,104,117.76/159,149.22
  6. Step 6: Final answer
    x = 120,799.24

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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.