Home / 182,078.16-251,258.40-100,419.84

Finding the Fourth Proportional to 182,078.16, 251,258.40 and 100,419.84

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Solution

The fourth proportional to 182,078.16, 251,258.40 and 100,419.84 is: 138,574.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,078.16 : 251,258.40 = 100,419.84 : x
  2. Step 2: Convert to fraction form
    182,078.16/251,258.40 = 100,419.84/x
  3. Step 3: Cross multiply
    182,078.16x = 251,258.40 × 100,419.84
  4. Step 4: Simplify right side
    182,078.16x = 25,231,328,326.66
  5. Step 5: Solve for x
    x = 25,231,328,326.66/182,078.16
  6. Step 6: Final answer
    x = 138,574.16

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1.5x scale

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.