Home / 165,354.48-228,188.88-89,902.80

Finding the Fourth Proportional to 165,354.48, 228,188.88 and 89,902.80

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Solution

The fourth proportional to 165,354.48, 228,188.88 and 89,902.80 is: 124,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,354.48 : 228,188.88 = 89,902.80 : x
  2. Step 2: Convert to fraction form
    165,354.48/228,188.88 = 89,902.80/x
  3. Step 3: Cross multiply
    165,354.48x = 228,188.88 × 89,902.80
  4. Step 4: Simplify right side
    165,354.48x = 20,514,819,240.86
  5. Step 5: Solve for x
    x = 20,514,819,240.86/165,354.48
  6. Step 6: Final answer
    x = 124,065.70

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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.