Home / 99,758.96-137,663.08-54,435.81

Finding the Fourth Proportional to 99,758.96, 137,663.08 and 54,435.81

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Solution

The fourth proportional to 99,758.96, 137,663.08 and 54,435.81 is: 75,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,758.96 : 137,663.08 = 54,435.81 : x
  2. Step 2: Convert to fraction form
    99,758.96/137,663.08 = 54,435.81/x
  3. Step 3: Cross multiply
    99,758.96x = 137,663.08 × 54,435.81
  4. Step 4: Simplify right side
    99,758.96x = 7,493,801,266.89
  5. Step 5: Solve for x
    x = 7,493,801,266.89/99,758.96
  6. Step 6: Final answer
    x = 75,119.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.