Home / 99,865.99-137,811.94-54,543.25

Finding the Fourth Proportional to 99,865.99, 137,811.94 and 54,543.25

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Solution

The fourth proportional to 99,865.99, 137,811.94 and 54,543.25 is: 75,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,865.99 : 137,811.94 = 54,543.25 : x
  2. Step 2: Convert to fraction form
    99,865.99/137,811.94 = 54,543.25/x
  3. Step 3: Cross multiply
    99,865.99x = 137,811.94 × 54,543.25
  4. Step 4: Simplify right side
    99,865.99x = 7,516,711,096.41
  5. Step 5: Solve for x
    x = 7,516,711,096.41/99,865.99
  6. Step 6: Final answer
    x = 75,267.98

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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.