Home / 167,538.60-251,352.45-72,728.10

Finding the Fourth Proportional to 167,538.60, 251,352.45 and 72,728.10

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Solution

The fourth proportional to 167,538.60, 251,352.45 and 72,728.10 is: 109,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,538.60 : 251,352.45 = 72,728.10 : x
  2. Step 2: Convert to fraction form
    167,538.60/251,352.45 = 72,728.10/x
  3. Step 3: Cross multiply
    167,538.60x = 251,352.45 × 72,728.10
  4. Step 4: Simplify right side
    167,538.60x = 18,280,386,118.85
  5. Step 5: Solve for x
    x = 18,280,386,118.85/167,538.60
  6. Step 6: Final answer
    x = 109,111.49

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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.