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Finding the Fourth Proportional to 159,594.56, 220,230.60 and 87,970.88

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Solution

The fourth proportional to 159,594.56, 220,230.60 and 87,970.88 is: 121,394.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,594.56 : 220,230.60 = 87,970.88 : x
  2. Step 2: Convert to fraction form
    159,594.56/220,230.60 = 87,970.88/x
  3. Step 3: Cross multiply
    159,594.56x = 220,230.60 × 87,970.88
  4. Step 4: Simplify right side
    159,594.56x = 19,373,879,684.93
  5. Step 5: Solve for x
    x = 19,373,879,684.93/159,594.56
  6. Step 6: Final answer
    x = 121,394.36

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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.