Home / 220,081.12-303,707.37-119,479.12

Finding the Fourth Proportional to 220,081.12, 303,707.37 and 119,479.12

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Solution

The fourth proportional to 220,081.12, 303,707.37 and 119,479.12 is: 164,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,081.12 : 303,707.37 = 119,479.12 : x
  2. Step 2: Convert to fraction form
    220,081.12/303,707.37 = 119,479.12/x
  3. Step 3: Cross multiply
    220,081.12x = 303,707.37 × 119,479.12
  4. Step 4: Simplify right side
    220,081.12x = 36,286,688,993.89
  5. Step 5: Solve for x
    x = 36,286,688,993.89/220,081.12
  6. Step 6: Final answer
    x = 164,878.70

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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.