Home / 123,947.40-185,921.10-112,866.60

Finding the Fourth Proportional to 123,947.40, 185,921.10 and 112,866.60

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Solution

The fourth proportional to 123,947.40, 185,921.10 and 112,866.60 is: 169,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.40 : 185,921.10 = 112,866.60 : x
  2. Step 2: Convert to fraction form
    123,947.40/185,921.10 = 112,866.60/x
  3. Step 3: Cross multiply
    123,947.40x = 185,921.10 × 112,866.60
  4. Step 4: Simplify right side
    123,947.40x = 20,984,282,425.26
  5. Step 5: Solve for x
    x = 20,984,282,425.26/123,947.40
  6. Step 6: Final answer
    x = 169,299.90

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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.