Home / 165,621.58-228,561.89-90,174.22

Finding the Fourth Proportional to 165,621.58, 228,561.89 and 90,174.22

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Solution

The fourth proportional to 165,621.58, 228,561.89 and 90,174.22 is: 124,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,621.58 : 228,561.89 = 90,174.22 : x
  2. Step 2: Convert to fraction form
    165,621.58/228,561.89 = 90,174.22/x
  3. Step 3: Cross multiply
    165,621.58x = 228,561.89 × 90,174.22
  4. Step 4: Simplify right side
    165,621.58x = 20,610,390,152.48
  5. Step 5: Solve for x
    x = 20,610,390,152.48/165,621.58
  6. Step 6: Final answer
    x = 124,442.66

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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.