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Finding the Fourth Proportional to 99,458.70, 149,188.05 and 40,296.30

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Solution

The fourth proportional to 99,458.70, 149,188.05 and 40,296.30 is: 60,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,458.70 : 149,188.05 = 40,296.30 : x
  2. Step 2: Convert to fraction form
    99,458.70/149,188.05 = 40,296.30/x
  3. Step 3: Cross multiply
    99,458.70x = 149,188.05 × 40,296.30
  4. Step 4: Simplify right side
    99,458.70x = 6,011,726,419.22
  5. Step 5: Solve for x
    x = 6,011,726,419.22/99,458.70
  6. Step 6: Final answer
    x = 60,444.45

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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.