Home / 134,864.64-185,967.36-91,872

Finding the Fourth Proportional to 134,864.64, 185,967.36 and 91,872

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Solution

The fourth proportional to 134,864.64, 185,967.36 and 91,872 is: 126,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,864.64 : 185,967.36 = 91,872 : x
  2. Step 2: Convert to fraction form
    134,864.64/185,967.36 = 91,872/x
  3. Step 3: Cross multiply
    134,864.64x = 185,967.36 × 91,872
  4. Step 4: Simplify right side
    134,864.64x = 17,085,193,297.92
  5. Step 5: Solve for x
    x = 17,085,193,297.92/134,864.64
  6. Step 6: Final answer
    x = 126,684.01

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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.