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Finding the Fourth Proportional to 99,998.60, 149,754.90 and 53,148.20

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Solution

The fourth proportional to 99,998.60, 149,754.90 and 53,148.20 is: 79,593.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,998.60 : 149,754.90 = 53,148.20 : x
  2. Step 2: Convert to fraction form
    99,998.60/149,754.90 = 53,148.20/x
  3. Step 3: Cross multiply
    99,998.60x = 149,754.90 × 53,148.20
  4. Step 4: Simplify right side
    99,998.60x = 7,959,203,376.18
  5. Step 5: Solve for x
    x = 7,959,203,376.18/99,998.60
  6. Step 6: Final answer
    x = 79,593.15

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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.