Home / 131,825.45-181,930.32-74,475.29

Finding the Fourth Proportional to 131,825.45, 181,930.32 and 74,475.29

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Solution

The fourth proportional to 131,825.45, 181,930.32 and 74,475.29 is: 102,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,825.45 : 181,930.32 = 74,475.29 : x
  2. Step 2: Convert to fraction form
    131,825.45/181,930.32 = 74,475.29/x
  3. Step 3: Cross multiply
    131,825.45x = 181,930.32 × 74,475.29
  4. Step 4: Simplify right side
    131,825.45x = 13,549,313,341.79
  5. Step 5: Solve for x
    x = 13,549,313,341.79/131,825.45
  6. Step 6: Final answer
    x = 102,782.23

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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.