Home / 165,903.12-228,859.02-112,206.20

Finding the Fourth Proportional to 165,903.12, 228,859.02 and 112,206.20

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Solution

The fourth proportional to 165,903.12, 228,859.02 and 112,206.20 is: 154,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,903.12 : 228,859.02 = 112,206.20 : x
  2. Step 2: Convert to fraction form
    165,903.12/228,859.02 = 112,206.20/x
  3. Step 3: Cross multiply
    165,903.12x = 228,859.02 × 112,206.20
  4. Step 4: Simplify right side
    165,903.12x = 25,679,399,825.63
  5. Step 5: Solve for x
    x = 25,679,399,825.63/165,903.12
  6. Step 6: Final answer
    x = 154,785.51

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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.