Home / 99,947.18-149,962.31-43,758.35

Finding the Fourth Proportional to 99,947.18, 149,962.31 and 43,758.35

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Solution

The fourth proportional to 99,947.18, 149,962.31 and 43,758.35 is: 65,655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,947.18 : 149,962.31 = 43,758.35 : x
  2. Step 2: Convert to fraction form
    99,947.18/149,962.31 = 43,758.35/x
  3. Step 3: Cross multiply
    99,947.18x = 149,962.31 × 43,758.35
  4. Step 4: Simplify right side
    99,947.18x = 6,562,103,247.79
  5. Step 5: Solve for x
    x = 6,562,103,247.79/99,947.18
  6. Step 6: Final answer
    x = 65,655.71

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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.