Home / 131,264.25-181,148.31-80,276.06

Finding the Fourth Proportional to 131,264.25, 181,148.31 and 80,276.06

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Solution

The fourth proportional to 131,264.25, 181,148.31 and 80,276.06 is: 110,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,264.25 : 181,148.31 = 80,276.06 : x
  2. Step 2: Convert to fraction form
    131,264.25/181,148.31 = 80,276.06/x
  3. Step 3: Cross multiply
    131,264.25x = 181,148.31 × 80,276.06
  4. Step 4: Simplify right side
    131,264.25x = 14,541,872,148.89
  5. Step 5: Solve for x
    x = 14,541,872,148.89/131,264.25
  6. Step 6: Final answer
    x = 110,783.19

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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.