Home / 159,716.45-220,298.19-129,503.06

Finding the Fourth Proportional to 159,716.45, 220,298.19 and 129,503.06

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Solution

The fourth proportional to 159,716.45, 220,298.19 and 129,503.06 is: 178,624.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,716.45 : 220,298.19 = 129,503.06 : x
  2. Step 2: Convert to fraction form
    159,716.45/220,298.19 = 129,503.06/x
  3. Step 3: Cross multiply
    159,716.45x = 220,298.19 × 129,503.06
  4. Step 4: Simplify right side
    159,716.45x = 28,529,289,717.46
  5. Step 5: Solve for x
    x = 28,529,289,717.46/159,716.45
  6. Step 6: Final answer
    x = 178,624.62

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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.