Home / 215,097.32-322,689.08-120,462.12

Finding the Fourth Proportional to 215,097.32, 322,689.08 and 120,462.12

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Solution

The fourth proportional to 215,097.32, 322,689.08 and 120,462.12 is: 180,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,097.32 : 322,689.08 = 120,462.12 : x
  2. Step 2: Convert to fraction form
    215,097.32/322,689.08 = 120,462.12/x
  3. Step 3: Cross multiply
    215,097.32x = 322,689.08 × 120,462.12
  4. Step 4: Simplify right side
    215,097.32x = 38,871,810,978.80
  5. Step 5: Solve for x
    x = 38,871,810,978.80/215,097.32
  6. Step 6: Final answer
    x = 180,717.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.