Home / 131,048.80-180,886.24-85,107.20

Finding the Fourth Proportional to 131,048.80, 180,886.24 and 85,107.20

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Solution

The fourth proportional to 131,048.80, 180,886.24 and 85,107.20 is: 117,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,048.80 : 180,886.24 = 85,107.20 : x
  2. Step 2: Convert to fraction form
    131,048.80/180,886.24 = 85,107.20/x
  3. Step 3: Cross multiply
    131,048.80x = 180,886.24 × 85,107.20
  4. Step 4: Simplify right side
    131,048.80x = 15,394,721,404.93
  5. Step 5: Solve for x
    x = 15,394,721,404.93/131,048.80
  6. Step 6: Final answer
    x = 117,473.20

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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.