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Finding the Fourth Proportional to 107,488.68, 148,375.70 and 71,665.62

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Solution

The fourth proportional to 107,488.68, 148,375.70 and 71,665.62 is: 98,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,488.68 : 148,375.70 = 71,665.62 : x
  2. Step 2: Convert to fraction form
    107,488.68/148,375.70 = 71,665.62/x
  3. Step 3: Cross multiply
    107,488.68x = 148,375.70 × 71,665.62
  4. Step 4: Simplify right side
    107,488.68x = 10,633,436,533.43
  5. Step 5: Solve for x
    x = 10,633,436,533.43/107,488.68
  6. Step 6: Final answer
    x = 98,926.11

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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.