Home / 151,511.04-209,086.02-87,886.44

Finding the Fourth Proportional to 151,511.04, 209,086.02 and 87,886.44

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Solution

The fourth proportional to 151,511.04, 209,086.02 and 87,886.44 is: 121,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,511.04 : 209,086.02 = 87,886.44 : x
  2. Step 2: Convert to fraction form
    151,511.04/209,086.02 = 87,886.44/x
  3. Step 3: Cross multiply
    151,511.04x = 209,086.02 × 87,886.44
  4. Step 4: Simplify right side
    151,511.04x = 18,375,825,951.57
  5. Step 5: Solve for x
    x = 18,375,825,951.57/151,511.04
  6. Step 6: Final answer
    x = 121,283.74

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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.