Home / 165,838.74-228,851.37-90,385.62

Finding the Fourth Proportional to 165,838.74, 228,851.37 and 90,385.62

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Solution

The fourth proportional to 165,838.74, 228,851.37 and 90,385.62 is: 124,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,838.74 : 228,851.37 = 90,385.62 : x
  2. Step 2: Convert to fraction form
    165,838.74/228,851.37 = 90,385.62/x
  3. Step 3: Cross multiply
    165,838.74x = 228,851.37 × 90,385.62
  4. Step 4: Simplify right side
    165,838.74x = 20,684,872,965.30
  5. Step 5: Solve for x
    x = 20,684,872,965.30/165,838.74
  6. Step 6: Final answer
    x = 124,728.84

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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.