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Finding the Fourth Proportional to 100,098.77, 150,164.55 and 47,479.55

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Solution

The fourth proportional to 100,098.77, 150,164.55 and 47,479.55 is: 71,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,098.77 : 150,164.55 = 47,479.55 : x
  2. Step 2: Convert to fraction form
    100,098.77/150,164.55 = 47,479.55/x
  3. Step 3: Cross multiply
    100,098.77x = 150,164.55 × 47,479.55
  4. Step 4: Simplify right side
    100,098.77x = 7,129,744,509.13
  5. Step 5: Solve for x
    x = 7,129,744,509.13/100,098.77
  6. Step 6: Final answer
    x = 71,227.10

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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.