Home / 165,518.18-248,402.02-121,258.34

Finding the Fourth Proportional to 165,518.18, 248,402.02 and 121,258.34

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Solution

The fourth proportional to 165,518.18, 248,402.02 and 121,258.34 is: 181,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,518.18 : 248,402.02 = 121,258.34 : x
  2. Step 2: Convert to fraction form
    165,518.18/248,402.02 = 121,258.34/x
  3. Step 3: Cross multiply
    165,518.18x = 248,402.02 × 121,258.34
  4. Step 4: Simplify right side
    165,518.18x = 30,120,816,597.85
  5. Step 5: Solve for x
    x = 30,120,816,597.85/165,518.18
  6. Step 6: Final answer
    x = 181,978.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.