Home / 165,921.20-248,881.80-140,001.20

Finding the Fourth Proportional to 165,921.20, 248,881.80 and 140,001.20

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Solution

The fourth proportional to 165,921.20, 248,881.80 and 140,001.20 is: 210,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,921.20 : 248,881.80 = 140,001.20 : x
  2. Step 2: Convert to fraction form
    165,921.20/248,881.80 = 140,001.20/x
  3. Step 3: Cross multiply
    165,921.20x = 248,881.80 × 140,001.20
  4. Step 4: Simplify right side
    165,921.20x = 34,843,750,658.16
  5. Step 5: Solve for x
    x = 34,843,750,658.16/165,921.20
  6. Step 6: Final answer
    x = 210,001.80

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1.5x scale

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.