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Finding the Fourth Proportional to 159,803.60, 220,529.61 and 88,185.69

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Solution

The fourth proportional to 159,803.60, 220,529.61 and 88,185.69 is: 121,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,803.60 : 220,529.61 = 88,185.69 : x
  2. Step 2: Convert to fraction form
    159,803.60/220,529.61 = 88,185.69/x
  3. Step 3: Cross multiply
    159,803.60x = 220,529.61 × 88,185.69
  4. Step 4: Simplify right side
    159,803.60x = 19,447,555,823.28
  5. Step 5: Solve for x
    x = 19,447,555,823.28/159,803.60
  6. Step 6: Final answer
    x = 121,696.61

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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.