Home / 106,429.52-159,645.84-31,557.28

Finding the Fourth Proportional to 106,429.52, 159,645.84 and 31,557.28

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Solution

The fourth proportional to 106,429.52, 159,645.84 and 31,557.28 is: 47,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,429.52 : 159,645.84 = 31,557.28 : x
  2. Step 2: Convert to fraction form
    106,429.52/159,645.84 = 31,557.28/x
  3. Step 3: Cross multiply
    106,429.52x = 159,645.84 × 31,557.28
  4. Step 4: Simplify right side
    106,429.52x = 5,037,988,473.72
  5. Step 5: Solve for x
    x = 5,037,988,473.72/106,429.52
  6. Step 6: Final answer
    x = 47,336.38

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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.