Home / 120,734.40-181,125.90-101,148.60

Finding the Fourth Proportional to 120,734.40, 181,125.90 and 101,148.60

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Solution

The fourth proportional to 120,734.40, 181,125.90 and 101,148.60 is: 151,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.40 : 181,125.90 = 101,148.60 : x
  2. Step 2: Convert to fraction form
    120,734.40/181,125.90 = 101,148.60/x
  3. Step 3: Cross multiply
    120,734.40x = 181,125.90 × 101,148.60
  4. Step 4: Simplify right side
    120,734.40x = 18,320,631,208.74
  5. Step 5: Solve for x
    x = 18,320,631,208.74/120,734.40
  6. Step 6: Final answer
    x = 151,743.26

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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.