Home / 110,186.87-165,340.28-85,275.57

Finding the Fourth Proportional to 110,186.87, 165,340.28 and 85,275.57

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Solution

The fourth proportional to 110,186.87, 165,340.28 and 85,275.57 is: 127,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,186.87 : 165,340.28 = 85,275.57 : x
  2. Step 2: Convert to fraction form
    110,186.87/165,340.28 = 85,275.57/x
  3. Step 3: Cross multiply
    110,186.87x = 165,340.28 × 85,275.57
  4. Step 4: Simplify right side
    110,186.87x = 14,099,486,622.07
  5. Step 5: Solve for x
    x = 14,099,486,622.07/110,186.87
  6. Step 6: Final answer
    x = 127,959.77

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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.