Home / 105,439.73-157,984.63-74,209.37

Finding the Fourth Proportional to 105,439.73, 157,984.63 and 74,209.37

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Solution

The fourth proportional to 105,439.73, 157,984.63 and 74,209.37 is: 111,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,439.73 : 157,984.63 = 74,209.37 : x
  2. Step 2: Convert to fraction form
    105,439.73/157,984.63 = 74,209.37/x
  3. Step 3: Cross multiply
    105,439.73x = 157,984.63 × 74,209.37
  4. Step 4: Simplify right side
    105,439.73x = 11,723,938,886.54
  5. Step 5: Solve for x
    x = 11,723,938,886.54/105,439.73
  6. Step 6: Final answer
    x = 111,190.91

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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.