Home / 99,975.42-137,952.57-64,213.92

Finding the Fourth Proportional to 99,975.42, 137,952.57 and 64,213.92

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Solution

The fourth proportional to 99,975.42, 137,952.57 and 64,213.92 is: 88,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,975.42 : 137,952.57 = 64,213.92 : x
  2. Step 2: Convert to fraction form
    99,975.42/137,952.57 = 64,213.92/x
  3. Step 3: Cross multiply
    99,975.42x = 137,952.57 × 64,213.92
  4. Step 4: Simplify right side
    99,975.42x = 8,858,475,293.77
  5. Step 5: Solve for x
    x = 8,858,475,293.77/99,975.42
  6. Step 6: Final answer
    x = 88,606.53

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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.