Home / 109,195.86-163,758.96-42,619.80

Finding the Fourth Proportional to 109,195.86, 163,758.96 and 42,619.80

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Solution

The fourth proportional to 109,195.86, 163,758.96 and 42,619.80 is: 63,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,195.86 : 163,758.96 = 42,619.80 : x
  2. Step 2: Convert to fraction form
    109,195.86/163,758.96 = 42,619.80/x
  3. Step 3: Cross multiply
    109,195.86x = 163,758.96 × 42,619.80
  4. Step 4: Simplify right side
    109,195.86x = 6,979,374,123.41
  5. Step 5: Solve for x
    x = 6,979,374,123.41/109,195.86
  6. Step 6: Final answer
    x = 63,916.11

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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.