Home / 109,716.96-151,420.14-66,692.70

Finding the Fourth Proportional to 109,716.96, 151,420.14 and 66,692.70

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Solution

The fourth proportional to 109,716.96, 151,420.14 and 66,692.70 is: 92,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,716.96 : 151,420.14 = 66,692.70 : x
  2. Step 2: Convert to fraction form
    109,716.96/151,420.14 = 66,692.70/x
  3. Step 3: Cross multiply
    109,716.96x = 151,420.14 × 66,692.70
  4. Step 4: Simplify right side
    109,716.96x = 10,098,617,970.98
  5. Step 5: Solve for x
    x = 10,098,617,970.98/109,716.96
  6. Step 6: Final answer
    x = 92,042.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.