Home / 121,322.72-182,639.19-109,116.14

Finding the Fourth Proportional to 121,322.72, 182,639.19 and 109,116.14

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Solution

The fourth proportional to 121,322.72, 182,639.19 and 109,116.14 is: 164,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,322.72 : 182,639.19 = 109,116.14 : x
  2. Step 2: Convert to fraction form
    121,322.72/182,639.19 = 109,116.14/x
  3. Step 3: Cross multiply
    121,322.72x = 182,639.19 × 109,116.14
  4. Step 4: Simplify right side
    121,322.72x = 19,928,882,512.33
  5. Step 5: Solve for x
    x = 19,928,882,512.33/121,322.72
  6. Step 6: Final answer
    x = 164,263.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.