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Finding the Fourth Proportional to 159,314.99, 219,853.04 and 87,693.57

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Solution

The fourth proportional to 159,314.99, 219,853.04 and 87,693.57 is: 121,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,314.99 : 219,853.04 = 87,693.57 : x
  2. Step 2: Convert to fraction form
    159,314.99/219,853.04 = 87,693.57/x
  3. Step 3: Cross multiply
    159,314.99x = 219,853.04 × 87,693.57
  4. Step 4: Simplify right side
    159,314.99x = 19,279,697,514.49
  5. Step 5: Solve for x
    x = 19,279,697,514.49/159,314.99
  6. Step 6: Final answer
    x = 121,016.22

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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.