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Finding the Fourth Proportional to 112,041, 154,619.88 and 61,743.24

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Solution

The fourth proportional to 112,041, 154,619.88 and 61,743.24 is: 85,207.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,041 : 154,619.88 = 61,743.24 : x
  2. Step 2: Convert to fraction form
    112,041/154,619.88 = 61,743.24/x
  3. Step 3: Cross multiply
    112,041x = 154,619.88 × 61,743.24
  4. Step 4: Simplify right side
    112,041x = 9,546,732,359.61
  5. Step 5: Solve for x
    x = 9,546,732,359.61/112,041
  6. Step 6: Final answer
    x = 85,207.49

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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.