Home / 124,729.40-172,107.60-71,016.68

Finding the Fourth Proportional to 124,729.40, 172,107.60 and 71,016.68

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Solution

The fourth proportional to 124,729.40, 172,107.60 and 71,016.68 is: 97,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,729.40 : 172,107.60 = 71,016.68 : x
  2. Step 2: Convert to fraction form
    124,729.40/172,107.60 = 71,016.68/x
  3. Step 3: Cross multiply
    124,729.40x = 172,107.60 × 71,016.68
  4. Step 4: Simplify right side
    124,729.40x = 12,222,510,354.77
  5. Step 5: Solve for x
    x = 12,222,510,354.77/124,729.40
  6. Step 6: Final answer
    x = 97,992.22

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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.