Home / 99,922.28-137,798.87-74,485.04

Finding the Fourth Proportional to 99,922.28, 137,798.87 and 74,485.04

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Solution

The fourth proportional to 99,922.28, 137,798.87 and 74,485.04 is: 102,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,922.28 : 137,798.87 = 74,485.04 : x
  2. Step 2: Convert to fraction form
    99,922.28/137,798.87 = 74,485.04/x
  3. Step 3: Cross multiply
    99,922.28x = 137,798.87 × 74,485.04
  4. Step 4: Simplify right side
    99,922.28x = 10,263,953,282.49
  5. Step 5: Solve for x
    x = 10,263,953,282.49/99,922.28
  6. Step 6: Final answer
    x = 102,719.37

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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.