Home / 131,616.48-181,625.52-80,621.28

Finding the Fourth Proportional to 131,616.48, 181,625.52 and 80,621.28

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Solution

The fourth proportional to 131,616.48, 181,625.52 and 80,621.28 is: 111,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,616.48 : 181,625.52 = 80,621.28 : x
  2. Step 2: Convert to fraction form
    131,616.48/181,625.52 = 80,621.28/x
  3. Step 3: Cross multiply
    131,616.48x = 181,625.52 × 80,621.28
  4. Step 4: Simplify right side
    131,616.48x = 14,642,881,903.07
  5. Step 5: Solve for x
    x = 14,642,881,903.07/131,616.48
  6. Step 6: Final answer
    x = 111,254.17

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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.