Home / 99,177.40-136,865.10-53,856.15

Finding the Fourth Proportional to 99,177.40, 136,865.10 and 53,856.15

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Solution

The fourth proportional to 99,177.40, 136,865.10 and 53,856.15 is: 74,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,177.40 : 136,865.10 = 53,856.15 : x
  2. Step 2: Convert to fraction form
    99,177.40/136,865.10 = 53,856.15/x
  3. Step 3: Cross multiply
    99,177.40x = 136,865.10 × 53,856.15
  4. Step 4: Simplify right side
    99,177.40x = 7,371,027,277.54
  5. Step 5: Solve for x
    x = 7,371,027,277.54/99,177.40
  6. Step 6: Final answer
    x = 74,321.64

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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.