Home / 215,976.32-298,070.40-120,516.16

Finding the Fourth Proportional to 215,976.32, 298,070.40 and 120,516.16

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Solution

The fourth proportional to 215,976.32, 298,070.40 and 120,516.16 is: 166,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,976.32 : 298,070.40 = 120,516.16 : x
  2. Step 2: Convert to fraction form
    215,976.32/298,070.40 = 120,516.16/x
  3. Step 3: Cross multiply
    215,976.32x = 298,070.40 × 120,516.16
  4. Step 4: Simplify right side
    215,976.32x = 35,922,300,017.66
  5. Step 5: Solve for x
    x = 35,922,300,017.66/215,976.32
  6. Step 6: Final answer
    x = 166,325.18

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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.