Home / 131,502.47-181,464.28-74,143.82

Finding the Fourth Proportional to 131,502.47, 181,464.28 and 74,143.82

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Solution

The fourth proportional to 131,502.47, 181,464.28 and 74,143.82 is: 102,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,502.47 : 181,464.28 = 74,143.82 : x
  2. Step 2: Convert to fraction form
    131,502.47/181,464.28 = 74,143.82/x
  3. Step 3: Cross multiply
    131,502.47x = 181,464.28 × 74,143.82
  4. Step 4: Simplify right side
    131,502.47x = 13,454,455,181.05
  5. Step 5: Solve for x
    x = 13,454,455,181.05/131,502.47
  6. Step 6: Final answer
    x = 102,313.33

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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.