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Finding the Fourth Proportional to 99,459.80, 149,189.70 and 97,819.55

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Solution

The fourth proportional to 99,459.80, 149,189.70 and 97,819.55 is: 146,729.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.80 : 149,189.70 = 97,819.55 : x
  2. Step 2: Convert to fraction form
    99,459.80/149,189.70 = 97,819.55/x
  3. Step 3: Cross multiply
    99,459.80x = 149,189.70 × 97,819.55
  4. Step 4: Simplify right side
    99,459.80x = 14,593,669,318.64
  5. Step 5: Solve for x
    x = 14,593,669,318.64/99,459.80
  6. Step 6: Final answer
    x = 146,729.33

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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.