Home / 111,961.90-154,521.56-64,214.23

Finding the Fourth Proportional to 111,961.90, 154,521.56 and 64,214.23

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Solution

The fourth proportional to 111,961.90, 154,521.56 and 64,214.23 is: 88,623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,961.90 : 154,521.56 = 64,214.23 : x
  2. Step 2: Convert to fraction form
    111,961.90/154,521.56 = 64,214.23/x
  3. Step 3: Cross multiply
    111,961.90x = 154,521.56 × 64,214.23
  4. Step 4: Simplify right side
    111,961.90x = 9,922,482,993.80
  5. Step 5: Solve for x
    x = 9,922,482,993.80/111,961.90
  6. Step 6: Final answer
    x = 88,623.75

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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.