Home / 112,163.52-154,785.36-64,419.96

Finding the Fourth Proportional to 112,163.52, 154,785.36 and 64,419.96

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Solution

The fourth proportional to 112,163.52, 154,785.36 and 64,419.96 is: 88,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,163.52 : 154,785.36 = 64,419.96 : x
  2. Step 2: Convert to fraction form
    112,163.52/154,785.36 = 64,419.96/x
  3. Step 3: Cross multiply
    112,163.52x = 154,785.36 × 64,419.96
  4. Step 4: Simplify right side
    112,163.52x = 9,971,266,699.79
  5. Step 5: Solve for x
    x = 9,971,266,699.79/112,163.52
  6. Step 6: Final answer
    x = 88,899.37

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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.