Home / 99,218.33-136,917.36-58,931.02

Finding the Fourth Proportional to 99,218.33, 136,917.36 and 58,931.02

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Solution

The fourth proportional to 99,218.33, 136,917.36 and 58,931.02 is: 81,322.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,218.33 : 136,917.36 = 58,931.02 : x
  2. Step 2: Convert to fraction form
    99,218.33/136,917.36 = 58,931.02/x
  3. Step 3: Cross multiply
    99,218.33x = 136,917.36 × 58,931.02
  4. Step 4: Simplify right side
    99,218.33x = 8,068,679,338.21
  5. Step 5: Solve for x
    x = 8,068,679,338.21/99,218.33
  6. Step 6: Final answer
    x = 81,322.47

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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.