Home / 207,919.09-286,928.49-112,425.76

Finding the Fourth Proportional to 207,919.09, 286,928.49 and 112,425.76

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Solution

The fourth proportional to 207,919.09, 286,928.49 and 112,425.76 is: 155,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,919.09 : 286,928.49 = 112,425.76 : x
  2. Step 2: Convert to fraction form
    207,919.09/286,928.49 = 112,425.76/x
  3. Step 3: Cross multiply
    207,919.09x = 286,928.49 × 112,425.76
  4. Step 4: Simplify right side
    207,919.09x = 32,258,153,553.90
  5. Step 5: Solve for x
    x = 32,258,153,553.90/207,919.09
  6. Step 6: Final answer
    x = 155,147.63

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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.