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Finding the Fourth Proportional to 159,597.70, 220,242.44 and 87,976.18

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Solution

The fourth proportional to 159,597.70, 220,242.44 and 87,976.18 is: 121,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,597.70 : 220,242.44 = 87,976.18 : x
  2. Step 2: Convert to fraction form
    159,597.70/220,242.44 = 87,976.18/x
  3. Step 3: Cross multiply
    159,597.70x = 220,242.44 × 87,976.18
  4. Step 4: Simplify right side
    159,597.70x = 19,376,088,545.08
  5. Step 5: Solve for x
    x = 19,376,088,545.08/159,597.70
  6. Step 6: Final answer
    x = 121,405.81

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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.