Home / 131,705.45-181,753.99-71,276.08

Finding the Fourth Proportional to 131,705.45, 181,753.99 and 71,276.08

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Solution

The fourth proportional to 131,705.45, 181,753.99 and 71,276.08 is: 98,361.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,705.45 : 181,753.99 = 71,276.08 : x
  2. Step 2: Convert to fraction form
    131,705.45/181,753.99 = 71,276.08/x
  3. Step 3: Cross multiply
    131,705.45x = 181,753.99 × 71,276.08
  4. Step 4: Simplify right side
    131,705.45x = 12,954,711,980.56
  5. Step 5: Solve for x
    x = 12,954,711,980.56/131,705.45
  6. Step 6: Final answer
    x = 98,361.25

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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.