Home / 106,458.30-159,687.47-43,312.78

Finding the Fourth Proportional to 106,458.30, 159,687.47 and 43,312.78

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Solution

The fourth proportional to 106,458.30, 159,687.47 and 43,312.78 is: 64,969.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,458.30 : 159,687.47 = 43,312.78 : x
  2. Step 2: Convert to fraction form
    106,458.30/159,687.47 = 43,312.78/x
  3. Step 3: Cross multiply
    106,458.30x = 159,687.47 × 43,312.78
  4. Step 4: Simplify right side
    106,458.30x = 6,916,508,256.87
  5. Step 5: Solve for x
    x = 6,916,508,256.87/106,458.30
  6. Step 6: Final answer
    x = 64,969.18

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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.