Home / 151,112.62-208,522.56-87,454.36

Finding the Fourth Proportional to 151,112.62, 208,522.56 and 87,454.36

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Solution

The fourth proportional to 151,112.62, 208,522.56 and 87,454.36 is: 120,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,112.62 : 208,522.56 = 87,454.36 : x
  2. Step 2: Convert to fraction form
    151,112.62/208,522.56 = 87,454.36/x
  3. Step 3: Cross multiply
    151,112.62x = 208,522.56 × 87,454.36
  4. Step 4: Simplify right side
    151,112.62x = 18,236,207,030.36
  5. Step 5: Solve for x
    x = 18,236,207,030.36/151,112.62
  6. Step 6: Final answer
    x = 120,679.58

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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.