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Finding the Fourth Proportional to 101,286.72, 151,848.64 and 69,602.88

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Solution

The fourth proportional to 101,286.72, 151,848.64 and 69,602.88 is: 104,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,286.72 : 151,848.64 = 69,602.88 : x
  2. Step 2: Convert to fraction form
    101,286.72/151,848.64 = 69,602.88/x
  3. Step 3: Cross multiply
    101,286.72x = 151,848.64 × 69,602.88
  4. Step 4: Simplify right side
    101,286.72x = 10,569,102,668.08
  5. Step 5: Solve for x
    x = 10,569,102,668.08/101,286.72
  6. Step 6: Final answer
    x = 104,348.36

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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.