Home / 106,442.28-159,690.78-39,883.32

Finding the Fourth Proportional to 106,442.28, 159,690.78 and 39,883.32

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Solution

The fourth proportional to 106,442.28, 159,690.78 and 39,883.32 is: 59,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,442.28 : 159,690.78 = 39,883.32 : x
  2. Step 2: Convert to fraction form
    106,442.28/159,690.78 = 39,883.32/x
  3. Step 3: Cross multiply
    106,442.28x = 159,690.78 × 39,883.32
  4. Step 4: Simplify right side
    106,442.28x = 6,368,998,479.79
  5. Step 5: Solve for x
    x = 6,368,998,479.79/106,442.28
  6. Step 6: Final answer
    x = 59,835.23

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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.