Home / 165,732.28-228,709.36-90,280.80

Finding the Fourth Proportional to 165,732.28, 228,709.36 and 90,280.80

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Solution

The fourth proportional to 165,732.28, 228,709.36 and 90,280.80 is: 124,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,732.28 : 228,709.36 = 90,280.80 : x
  2. Step 2: Convert to fraction form
    165,732.28/228,709.36 = 90,280.80/x
  3. Step 3: Cross multiply
    165,732.28x = 228,709.36 × 90,280.80
  4. Step 4: Simplify right side
    165,732.28x = 20,648,063,988.29
  5. Step 5: Solve for x
    x = 20,648,063,988.29/165,732.28
  6. Step 6: Final answer
    x = 124,586.86

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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.