Home / 111,842.13-154,320.88-66,531.59

Finding the Fourth Proportional to 111,842.13, 154,320.88 and 66,531.59

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Solution

The fourth proportional to 111,842.13, 154,320.88 and 66,531.59 is: 91,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,842.13 : 154,320.88 = 66,531.59 : x
  2. Step 2: Convert to fraction form
    111,842.13/154,320.88 = 66,531.59/x
  3. Step 3: Cross multiply
    111,842.13x = 154,320.88 × 66,531.59
  4. Step 4: Simplify right side
    111,842.13x = 10,267,213,516.60
  5. Step 5: Solve for x
    x = 10,267,213,516.60/111,842.13
  6. Step 6: Final answer
    x = 91,800.95

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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.