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Finding the Fourth Proportional to 159,590.08, 220,234.24 and 87,971.30

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Solution

The fourth proportional to 159,590.08, 220,234.24 and 87,971.30 is: 121,400.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,590.08 : 220,234.24 = 87,971.30 : x
  2. Step 2: Convert to fraction form
    159,590.08/220,234.24 = 87,971.30/x
  3. Step 3: Cross multiply
    159,590.08x = 220,234.24 × 87,971.30
  4. Step 4: Simplify right side
    159,590.08x = 19,374,292,397.31
  5. Step 5: Solve for x
    x = 19,374,292,397.31/159,590.08
  6. Step 6: Final answer
    x = 121,400.36

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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.