Home / 150,641.45-207,883.38-86,977.88

Finding the Fourth Proportional to 150,641.45, 207,883.38 and 86,977.88

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Solution

The fourth proportional to 150,641.45, 207,883.38 and 86,977.88 is: 120,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,641.45 : 207,883.38 = 86,977.88 : x
  2. Step 2: Convert to fraction form
    150,641.45/207,883.38 = 86,977.88/x
  3. Step 3: Cross multiply
    150,641.45x = 207,883.38 × 86,977.88
  4. Step 4: Simplify right side
    150,641.45x = 18,081,255,679.63
  5. Step 5: Solve for x
    x = 18,081,255,679.63/150,641.45
  6. Step 6: Final answer
    x = 120,028.42

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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.