Home / 159,437.64-220,033.92-87,817.62

Finding the Fourth Proportional to 159,437.64, 220,033.92 and 87,817.62

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Solution

The fourth proportional to 159,437.64, 220,033.92 and 87,817.62 is: 121,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,437.64 : 220,033.92 = 87,817.62 : x
  2. Step 2: Convert to fraction form
    159,437.64/220,033.92 = 87,817.62/x
  3. Step 3: Cross multiply
    159,437.64x = 220,033.92 × 87,817.62
  4. Step 4: Simplify right side
    159,437.64x = 19,322,855,173.67
  5. Step 5: Solve for x
    x = 19,322,855,173.67/159,437.64
  6. Step 6: Final answer
    x = 121,193.81

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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.