Home / 151,996.52-209,784.17-100,222.58

Finding the Fourth Proportional to 151,996.52, 209,784.17 and 100,222.58

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Solution

The fourth proportional to 151,996.52, 209,784.17 and 100,222.58 is: 138,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,996.52 : 209,784.17 = 100,222.58 : x
  2. Step 2: Convert to fraction form
    151,996.52/209,784.17 = 100,222.58/x
  3. Step 3: Cross multiply
    151,996.52x = 209,784.17 × 100,222.58
  4. Step 4: Simplify right side
    151,996.52x = 21,025,109,962.19
  5. Step 5: Solve for x
    x = 21,025,109,962.19/151,996.52
  6. Step 6: Final answer
    x = 138,326.26

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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.