Home / 165,542.40-228,289.70-111,217.32

Finding the Fourth Proportional to 165,542.40, 228,289.70 and 111,217.32

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Solution

The fourth proportional to 165,542.40, 228,289.70 and 111,217.32 is: 153,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,542.40 : 228,289.70 = 111,217.32 : x
  2. Step 2: Convert to fraction form
    165,542.40/228,289.70 = 111,217.32/x
  3. Step 3: Cross multiply
    165,542.40x = 228,289.70 × 111,217.32
  4. Step 4: Simplify right side
    165,542.40x = 25,389,768,617.60
  5. Step 5: Solve for x
    x = 25,389,768,617.60/165,542.40
  6. Step 6: Final answer
    x = 153,373.21

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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.