Home / 120,811.08-181,175.56-45,913.20

Finding the Fourth Proportional to 120,811.08, 181,175.56 and 45,913.20

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Solution

The fourth proportional to 120,811.08, 181,175.56 and 45,913.20 is: 68,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,811.08 : 181,175.56 = 45,913.20 : x
  2. Step 2: Convert to fraction form
    120,811.08/181,175.56 = 45,913.20/x
  3. Step 3: Cross multiply
    120,811.08x = 181,175.56 × 45,913.20
  4. Step 4: Simplify right side
    120,811.08x = 8,318,349,721.39
  5. Step 5: Solve for x
    x = 8,318,349,721.39/120,811.08
  6. Step 6: Final answer
    x = 68,854.20

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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.