Home / 123,907.28-170,991.60-67,318.16

Finding the Fourth Proportional to 123,907.28, 170,991.60 and 67,318.16

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Solution

The fourth proportional to 123,907.28, 170,991.60 and 67,318.16 is: 92,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,907.28 : 170,991.60 = 67,318.16 : x
  2. Step 2: Convert to fraction form
    123,907.28/170,991.60 = 67,318.16/x
  3. Step 3: Cross multiply
    123,907.28x = 170,991.60 × 67,318.16
  4. Step 4: Simplify right side
    123,907.28x = 11,510,839,887.46
  5. Step 5: Solve for x
    x = 11,510,839,887.46/123,907.28
  6. Step 6: Final answer
    x = 92,898.82

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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.