Home / 110,661.20-165,758.40-75,144.32

Finding the Fourth Proportional to 110,661.20, 165,758.40 and 75,144.32

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Solution

The fourth proportional to 110,661.20, 165,758.40 and 75,144.32 is: 112,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,661.20 : 165,758.40 = 75,144.32 : x
  2. Step 2: Convert to fraction form
    110,661.20/165,758.40 = 75,144.32/x
  3. Step 3: Cross multiply
    110,661.20x = 165,758.40 × 75,144.32
  4. Step 4: Simplify right side
    110,661.20x = 12,455,802,252.29
  5. Step 5: Solve for x
    x = 12,455,802,252.29/110,661.20
  6. Step 6: Final answer
    x = 112,557.99

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1.5x scale

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.