Home / 99,199.64-136,896.50-53,878.05

Finding the Fourth Proportional to 99,199.64, 136,896.50 and 53,878.05

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Solution

The fourth proportional to 99,199.64, 136,896.50 and 53,878.05 is: 74,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,199.64 : 136,896.50 = 53,878.05 : x
  2. Step 2: Convert to fraction form
    99,199.64/136,896.50 = 53,878.05/x
  3. Step 3: Cross multiply
    99,199.64x = 136,896.50 × 53,878.05
  4. Step 4: Simplify right side
    99,199.64x = 7,375,716,202.43
  5. Step 5: Solve for x
    x = 7,375,716,202.43/99,199.64
  6. Step 6: Final answer
    x = 74,352.25

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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.