Home / 116,918.15-161,308.80-71,548.83

Finding the Fourth Proportional to 116,918.15, 161,308.80 and 71,548.83

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Solution

The fourth proportional to 116,918.15, 161,308.80 and 71,548.83 is: 98,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,918.15 : 161,308.80 = 71,548.83 : x
  2. Step 2: Convert to fraction form
    116,918.15/161,308.80 = 71,548.83/x
  3. Step 3: Cross multiply
    116,918.15x = 161,308.80 × 71,548.83
  4. Step 4: Simplify right side
    116,918.15x = 11,541,455,908.70
  5. Step 5: Solve for x
    x = 11,541,455,908.70/116,918.15
  6. Step 6: Final answer
    x = 98,713.98

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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.