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Finding the Fourth Proportional to 100,117.79, 150,153 and 36,903.57

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Solution

The fourth proportional to 100,117.79, 150,153 and 36,903.57 is: 55,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,117.79 : 150,153 = 36,903.57 : x
  2. Step 2: Convert to fraction form
    100,117.79/150,153 = 36,903.57/x
  3. Step 3: Cross multiply
    100,117.79x = 150,153 × 36,903.57
  4. Step 4: Simplify right side
    100,117.79x = 5,541,181,746.21
  5. Step 5: Solve for x
    x = 5,541,181,746.21/100,117.79
  6. Step 6: Final answer
    x = 55,346.62

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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.