Home / 111,686.28-154,207.60-68,723.62

Finding the Fourth Proportional to 111,686.28, 154,207.60 and 68,723.62

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Solution

The fourth proportional to 111,686.28, 154,207.60 and 68,723.62 is: 94,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,686.28 : 154,207.60 = 68,723.62 : x
  2. Step 2: Convert to fraction form
    111,686.28/154,207.60 = 68,723.62/x
  3. Step 3: Cross multiply
    111,686.28x = 154,207.60 × 68,723.62
  4. Step 4: Simplify right side
    111,686.28x = 10,597,704,503.51
  5. Step 5: Solve for x
    x = 10,597,704,503.51/111,686.28
  6. Step 6: Final answer
    x = 94,888.15

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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.