Home / 165,642.75-228,587.00-90,191.25

Finding the Fourth Proportional to 165,642.75, 228,587.00 and 90,191.25

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Solution

The fourth proportional to 165,642.75, 228,587.00 and 90,191.25 is: 124,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,642.75 : 228,587.00 = 90,191.25 : x
  2. Step 2: Convert to fraction form
    165,642.75/228,587.00 = 90,191.25/x
  3. Step 3: Cross multiply
    165,642.75x = 228,587.00 × 90,191.25
  4. Step 4: Simplify right side
    165,642.75x = 20,616,546,812.79
  5. Step 5: Solve for x
    x = 20,616,546,812.79/165,642.75
  6. Step 6: Final answer
    x = 124,463.93

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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.