Home / 99,944.40-149,743.80-47,240.40

Finding the Fourth Proportional to 99,944.40, 149,743.80 and 47,240.40

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Solution

The fourth proportional to 99,944.40, 149,743.80 and 47,240.40 is: 70,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,944.40 : 149,743.80 = 47,240.40 : x
  2. Step 2: Convert to fraction form
    99,944.40/149,743.80 = 47,240.40/x
  3. Step 3: Cross multiply
    99,944.40x = 149,743.80 × 47,240.40
  4. Step 4: Simplify right side
    99,944.40x = 7,073,957,009.52
  5. Step 5: Solve for x
    x = 7,073,957,009.52/99,944.40
  6. Step 6: Final answer
    x = 70,778.92

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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.