Home / 165,516.50-228,412.77-90,065.54

Finding the Fourth Proportional to 165,516.50, 228,412.77 and 90,065.54

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Solution

The fourth proportional to 165,516.50, 228,412.77 and 90,065.54 is: 124,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,516.50 : 228,412.77 = 90,065.54 : x
  2. Step 2: Convert to fraction form
    165,516.50/228,412.77 = 90,065.54/x
  3. Step 3: Cross multiply
    165,516.50x = 228,412.77 × 90,065.54
  4. Step 4: Simplify right side
    165,516.50x = 20,572,119,472.95
  5. Step 5: Solve for x
    x = 20,572,119,472.95/165,516.50
  6. Step 6: Final answer
    x = 124,290.45

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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.