Home / 97,858.80-135,101.16-64,422

Finding the Fourth Proportional to 97,858.80, 135,101.16 and 64,422

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Solution

The fourth proportional to 97,858.80, 135,101.16 and 64,422 is: 88,939.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,858.80 : 135,101.16 = 64,422 : x
  2. Step 2: Convert to fraction form
    97,858.80/135,101.16 = 64,422/x
  3. Step 3: Cross multiply
    97,858.80x = 135,101.16 × 64,422
  4. Step 4: Simplify right side
    97,858.80x = 8,703,486,929.52
  5. Step 5: Solve for x
    x = 8,703,486,929.52/97,858.80
  6. Step 6: Final answer
    x = 88,939.24

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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.