Home / 113,461.40-169,932.90-66,805.40

Finding the Fourth Proportional to 113,461.40, 169,932.90 and 66,805.40

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Solution

The fourth proportional to 113,461.40, 169,932.90 and 66,805.40 is: 100,055.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,461.40 : 169,932.90 = 66,805.40 : x
  2. Step 2: Convert to fraction form
    113,461.40/169,932.90 = 66,805.40/x
  3. Step 3: Cross multiply
    113,461.40x = 169,932.90 × 66,805.40
  4. Step 4: Simplify right side
    113,461.40x = 11,352,435,357.66
  5. Step 5: Solve for x
    x = 11,352,435,357.66/113,461.40
  6. Step 6: Final answer
    x = 100,055.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.