Home / 165,543.40-228,291.08-111,218.32

Finding the Fourth Proportional to 165,543.40, 228,291.08 and 111,218.32

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Solution

The fourth proportional to 165,543.40, 228,291.08 and 111,218.32 is: 153,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,543.40 : 228,291.08 = 111,218.32 : x
  2. Step 2: Convert to fraction form
    165,543.40/228,291.08 = 111,218.32/x
  3. Step 3: Cross multiply
    165,543.40x = 228,291.08 × 111,218.32
  4. Step 4: Simplify right side
    165,543.40x = 25,390,150,388.59
  5. Step 5: Solve for x
    x = 25,390,150,388.59/165,543.40
  6. Step 6: Final answer
    x = 153,374.59

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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.