Home / 131,433.02-181,377.38-74,844.39

Finding the Fourth Proportional to 131,433.02, 181,377.38 and 74,844.39

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Solution

The fourth proportional to 131,433.02, 181,377.38 and 74,844.39 is: 103,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,433.02 : 181,377.38 = 74,844.39 : x
  2. Step 2: Convert to fraction form
    131,433.02/181,377.38 = 74,844.39/x
  3. Step 3: Cross multiply
    131,433.02x = 181,377.38 × 74,844.39
  4. Step 4: Simplify right side
    131,433.02x = 13,575,079,365.90
  5. Step 5: Solve for x
    x = 13,575,079,365.90/131,433.02
  6. Step 6: Final answer
    x = 103,285.15

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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.