Home / 131,690.96-181,732.14-71,260.28

Finding the Fourth Proportional to 131,690.96, 181,732.14 and 71,260.28

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Solution

The fourth proportional to 131,690.96, 181,732.14 and 71,260.28 is: 98,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690.96 : 181,732.14 = 71,260.28 : x
  2. Step 2: Convert to fraction form
    131,690.96/181,732.14 = 71,260.28/x
  3. Step 3: Cross multiply
    131,690.96x = 181,732.14 × 71,260.28
  4. Step 4: Simplify right side
    131,690.96x = 12,950,283,181.40
  5. Step 5: Solve for x
    x = 12,950,283,181.40/131,690.96
  6. Step 6: Final answer
    x = 98,338.44

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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.