Home / 125,109.22-172,653.60-71,399.23

Finding the Fourth Proportional to 125,109.22, 172,653.60 and 71,399.23

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Solution

The fourth proportional to 125,109.22, 172,653.60 and 71,399.23 is: 98,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,109.22 : 172,653.60 = 71,399.23 : x
  2. Step 2: Convert to fraction form
    125,109.22/172,653.60 = 71,399.23/x
  3. Step 3: Cross multiply
    125,109.22x = 172,653.60 × 71,399.23
  4. Step 4: Simplify right side
    125,109.22x = 12,327,334,096.73
  5. Step 5: Solve for x
    x = 12,327,334,096.73/125,109.22
  6. Step 6: Final answer
    x = 98,532.58

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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.