Home / 165,905.76-228,954.96-90,455.52

Finding the Fourth Proportional to 165,905.76, 228,954.96 and 90,455.52

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Solution

The fourth proportional to 165,905.76, 228,954.96 and 90,455.52 is: 124,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,905.76 : 228,954.96 = 90,455.52 : x
  2. Step 2: Convert to fraction form
    165,905.76/228,954.96 = 90,455.52/x
  3. Step 3: Cross multiply
    165,905.76x = 228,954.96 × 90,455.52
  4. Step 4: Simplify right side
    165,905.76x = 20,710,239,963.38
  5. Step 5: Solve for x
    x = 20,710,239,963.38/165,905.76
  6. Step 6: Final answer
    x = 124,831.35

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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.