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Finding the Fourth Proportional to 101,286.65, 151,970.85 and 45,088.36

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Solution

The fourth proportional to 101,286.65, 151,970.85 and 45,088.36 is: 67,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,286.65 : 151,970.85 = 45,088.36 : x
  2. Step 2: Convert to fraction form
    101,286.65/151,970.85 = 45,088.36/x
  3. Step 3: Cross multiply
    101,286.65x = 151,970.85 × 45,088.36
  4. Step 4: Simplify right side
    101,286.65x = 6,852,116,394.31
  5. Step 5: Solve for x
    x = 6,852,116,394.31/101,286.65
  6. Step 6: Final answer
    x = 67,650.74

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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.