Home / 99,925.64-137,896.18-55,212.68

Finding the Fourth Proportional to 99,925.64, 137,896.18 and 55,212.68

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Solution

The fourth proportional to 99,925.64, 137,896.18 and 55,212.68 is: 76,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,925.64 : 137,896.18 = 55,212.68 : x
  2. Step 2: Convert to fraction form
    99,925.64/137,896.18 = 55,212.68/x
  3. Step 3: Cross multiply
    99,925.64x = 137,896.18 × 55,212.68
  4. Step 4: Simplify right side
    99,925.64x = 7,613,617,659.56
  5. Step 5: Solve for x
    x = 7,613,617,659.56/99,925.64
  6. Step 6: Final answer
    x = 76,192.83

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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.