Home / 210,912.16-291,091.52-120,268.32

Finding the Fourth Proportional to 210,912.16, 291,091.52 and 120,268.32

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Solution

The fourth proportional to 210,912.16, 291,091.52 and 120,268.32 is: 165,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,912.16 : 291,091.52 = 120,268.32 : x
  2. Step 2: Convert to fraction form
    210,912.16/291,091.52 = 120,268.32/x
  3. Step 3: Cross multiply
    210,912.16x = 291,091.52 × 120,268.32
  4. Step 4: Simplify right side
    210,912.16x = 35,009,088,076.65
  5. Step 5: Solve for x
    x = 35,009,088,076.65/210,912.16
  6. Step 6: Final answer
    x = 165,988.95

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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.