Home / 124,909.44-172,458.24-73,938.72

Finding the Fourth Proportional to 124,909.44, 172,458.24 and 73,938.72

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Solution

The fourth proportional to 124,909.44, 172,458.24 and 73,938.72 is: 102,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,909.44 : 172,458.24 = 73,938.72 : x
  2. Step 2: Convert to fraction form
    124,909.44/172,458.24 = 73,938.72/x
  3. Step 3: Cross multiply
    124,909.44x = 172,458.24 × 73,938.72
  4. Step 4: Simplify right side
    124,909.44x = 12,751,341,519.05
  5. Step 5: Solve for x
    x = 12,751,341,519.05/124,909.44
  6. Step 6: Final answer
    x = 102,084.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.