Home / 109,176.94-163,756-66,471.30

Finding the Fourth Proportional to 109,176.94, 163,756 and 66,471.30

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Solution

The fourth proportional to 109,176.94, 163,756 and 66,471.30 is: 99,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,176.94 : 163,756 = 66,471.30 : x
  2. Step 2: Convert to fraction form
    109,176.94/163,756 = 66,471.30/x
  3. Step 3: Cross multiply
    109,176.94x = 163,756 × 66,471.30
  4. Step 4: Simplify right side
    109,176.94x = 10,885,074,202.80
  5. Step 5: Solve for x
    x = 10,885,074,202.80/109,176.94
  6. Step 6: Final answer
    x = 99,701.22

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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.