Home / 166,417.31-229,655.89-90,965.81

Finding the Fourth Proportional to 166,417.31, 229,655.89 and 90,965.81

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Solution

The fourth proportional to 166,417.31, 229,655.89 and 90,965.81 is: 125,532.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,417.31 : 229,655.89 = 90,965.81 : x
  2. Step 2: Convert to fraction form
    166,417.31/229,655.89 = 90,965.81/x
  3. Step 3: Cross multiply
    166,417.31x = 229,655.89 × 90,965.81
  4. Step 4: Simplify right side
    166,417.31x = 20,890,834,742.97
  5. Step 5: Solve for x
    x = 20,890,834,742.97/166,417.31
  6. Step 6: Final answer
    x = 125,532.82

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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.