Home / 120,738.96-181,298-102,261.24

Finding the Fourth Proportional to 120,738.96, 181,298 and 102,261.24

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Solution

The fourth proportional to 120,738.96, 181,298 and 102,261.24 is: 153,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,738.96 : 181,298 = 102,261.24 : x
  2. Step 2: Convert to fraction form
    120,738.96/181,298 = 102,261.24/x
  3. Step 3: Cross multiply
    120,738.96x = 181,298 × 102,261.24
  4. Step 4: Simplify right side
    120,738.96x = 18,539,758,289.52
  5. Step 5: Solve for x
    x = 18,539,758,289.52/120,738.96
  6. Step 6: Final answer
    x = 153,552.41

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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.