Home / 131,502.64-181,429.32-74,873.92

Finding the Fourth Proportional to 131,502.64, 181,429.32 and 74,873.92

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Solution

The fourth proportional to 131,502.64, 181,429.32 and 74,873.92 is: 103,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,502.64 : 181,429.32 = 74,873.92 : x
  2. Step 2: Convert to fraction form
    131,502.64/181,429.32 = 74,873.92/x
  3. Step 3: Cross multiply
    131,502.64x = 181,429.32 × 74,873.92
  4. Step 4: Simplify right side
    131,502.64x = 13,584,324,391.33
  5. Step 5: Solve for x
    x = 13,584,324,391.33/131,502.64
  6. Step 6: Final answer
    x = 103,300.77

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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.