Home / 155,278.97-214,285.85-87,295.32

Finding the Fourth Proportional to 155,278.97, 214,285.85 and 87,295.32

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Solution

The fourth proportional to 155,278.97, 214,285.85 and 87,295.32 is: 120,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,278.97 : 214,285.85 = 87,295.32 : x
  2. Step 2: Convert to fraction form
    155,278.97/214,285.85 = 87,295.32/x
  3. Step 3: Cross multiply
    155,278.97x = 214,285.85 × 87,295.32
  4. Step 4: Simplify right side
    155,278.97x = 18,706,152,229.14
  5. Step 5: Solve for x
    x = 18,706,152,229.14/155,278.97
  6. Step 6: Final answer
    x = 120,468.03

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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.