Home / 165,885.28-228,920.52-90,434.32

Finding the Fourth Proportional to 165,885.28, 228,920.52 and 90,434.32

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Solution

The fourth proportional to 165,885.28, 228,920.52 and 90,434.32 is: 124,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,885.28 : 228,920.52 = 90,434.32 : x
  2. Step 2: Convert to fraction form
    165,885.28/228,920.52 = 90,434.32/x
  3. Step 3: Cross multiply
    165,885.28x = 228,920.52 × 90,434.32
  4. Step 4: Simplify right side
    165,885.28x = 20,702,271,560.25
  5. Step 5: Solve for x
    x = 20,702,271,560.25/165,885.28
  6. Step 6: Final answer
    x = 124,798.73

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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.