Home / 99,218.58-136,917.71-58,931.27

Finding the Fourth Proportional to 99,218.58, 136,917.71 and 58,931.27

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Solution

The fourth proportional to 99,218.58, 136,917.71 and 58,931.27 is: 81,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,218.58 : 136,917.71 = 58,931.27 : x
  2. Step 2: Convert to fraction form
    99,218.58/136,917.71 = 58,931.27/x
  3. Step 3: Cross multiply
    99,218.58x = 136,917.71 × 58,931.27
  4. Step 4: Simplify right side
    99,218.58x = 8,068,733,898.84
  5. Step 5: Solve for x
    x = 8,068,733,898.84/99,218.58
  6. Step 6: Final answer
    x = 81,322.82

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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.