Home / 106,344.45-159,516.63-31,458.78

Finding the Fourth Proportional to 106,344.45, 159,516.63 and 31,458.78

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Solution

The fourth proportional to 106,344.45, 159,516.63 and 31,458.78 is: 47,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,344.45 : 159,516.63 = 31,458.78 : x
  2. Step 2: Convert to fraction form
    106,344.45/159,516.63 = 31,458.78/x
  3. Step 3: Cross multiply
    106,344.45x = 159,516.63 × 31,458.78
  4. Step 4: Simplify right side
    106,344.45x = 5,018,198,569.51
  5. Step 5: Solve for x
    x = 5,018,198,569.51/106,344.45
  6. Step 6: Final answer
    x = 47,188.16

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1.5x scale

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.