Home / 99,784.49-149,597.25-57,616.70

Finding the Fourth Proportional to 99,784.49, 149,597.25 and 57,616.70

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Solution

The fourth proportional to 99,784.49, 149,597.25 and 57,616.70 is: 86,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,784.49 : 149,597.25 = 57,616.70 : x
  2. Step 2: Convert to fraction form
    99,784.49/149,597.25 = 57,616.70/x
  3. Step 3: Cross multiply
    99,784.49x = 149,597.25 × 57,616.70
  4. Step 4: Simplify right side
    99,784.49x = 8,619,299,500.08
  5. Step 5: Solve for x
    x = 8,619,299,500.08/99,784.49
  6. Step 6: Final answer
    x = 86,379.15

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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.