Home / 113,320.60-169,635.30-66,434.20

Finding the Fourth Proportional to 113,320.60, 169,635.30 and 66,434.20

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Solution

The fourth proportional to 113,320.60, 169,635.30 and 66,434.20 is: 99,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,320.60 : 169,635.30 = 66,434.20 : x
  2. Step 2: Convert to fraction form
    113,320.60/169,635.30 = 66,434.20/x
  3. Step 3: Cross multiply
    113,320.60x = 169,635.30 × 66,434.20
  4. Step 4: Simplify right side
    113,320.60x = 11,269,585,447.26
  5. Step 5: Solve for x
    x = 11,269,585,447.26/113,320.60
  6. Step 6: Final answer
    x = 99,448.69

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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.