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Finding the Fourth Proportional to 100,403.72, 150,507.66 and 47,799.08

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Solution

The fourth proportional to 100,403.72, 150,507.66 and 47,799.08 is: 71,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,403.72 : 150,507.66 = 47,799.08 : x
  2. Step 2: Convert to fraction form
    100,403.72/150,507.66 = 47,799.08/x
  3. Step 3: Cross multiply
    100,403.72x = 150,507.66 × 47,799.08
  4. Step 4: Simplify right side
    100,403.72x = 7,194,127,680.95
  5. Step 5: Solve for x
    x = 7,194,127,680.95/100,403.72
  6. Step 6: Final answer
    x = 71,652.00

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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.