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Finding the Fourth Proportional to 99,472.60, 149,093.70 and 40,269.40

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Solution

The fourth proportional to 99,472.60, 149,093.70 and 40,269.40 is: 60,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,472.60 : 149,093.70 = 40,269.40 : x
  2. Step 2: Convert to fraction form
    99,472.60/149,093.70 = 40,269.40/x
  3. Step 3: Cross multiply
    99,472.60x = 149,093.70 × 40,269.40
  4. Step 4: Simplify right side
    99,472.60x = 6,003,913,842.78
  5. Step 5: Solve for x
    x = 6,003,913,842.78/99,472.60
  6. Step 6: Final answer
    x = 60,357.46

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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.