Home / 109,869.58-164,811.29-42,433.78

Finding the Fourth Proportional to 109,869.58, 164,811.29 and 42,433.78

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Solution

The fourth proportional to 109,869.58, 164,811.29 and 42,433.78 is: 63,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.58 : 164,811.29 = 42,433.78 : x
  2. Step 2: Convert to fraction form
    109,869.58/164,811.29 = 42,433.78/x
  3. Step 3: Cross multiply
    109,869.58x = 164,811.29 × 42,433.78
  4. Step 4: Simplify right side
    109,869.58x = 6,993,566,239.79
  5. Step 5: Solve for x
    x = 6,993,566,239.79/109,869.58
  6. Step 6: Final answer
    x = 63,653.34

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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.