Home / 159,613.63-220,276.73-87,993.56

Finding the Fourth Proportional to 159,613.63, 220,276.73 and 87,993.56

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Solution

The fourth proportional to 159,613.63, 220,276.73 and 87,993.56 is: 121,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,613.63 : 220,276.73 = 87,993.56 : x
  2. Step 2: Convert to fraction form
    159,613.63/220,276.73 = 87,993.56/x
  3. Step 3: Cross multiply
    159,613.63x = 220,276.73 × 87,993.56
  4. Step 4: Simplify right side
    159,613.63x = 19,382,934,428.53
  5. Step 5: Solve for x
    x = 19,382,934,428.53/159,613.63
  6. Step 6: Final answer
    x = 121,436.59

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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.