Home / 113,221.52-169,878.39-57,077.81

Finding the Fourth Proportional to 113,221.52, 169,878.39 and 57,077.81

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Solution

The fourth proportional to 113,221.52, 169,878.39 and 57,077.81 is: 85,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,221.52 : 169,878.39 = 57,077.81 : x
  2. Step 2: Convert to fraction form
    113,221.52/169,878.39 = 57,077.81/x
  3. Step 3: Cross multiply
    113,221.52x = 169,878.39 × 57,077.81
  4. Step 4: Simplify right side
    113,221.52x = 9,696,286,467.53
  5. Step 5: Solve for x
    x = 9,696,286,467.53/113,221.52
  6. Step 6: Final answer
    x = 85,639.96

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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.