Home / 155,361.98-214,367.38-90,818.75

Finding the Fourth Proportional to 155,361.98, 214,367.38 and 90,818.75

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Solution

The fourth proportional to 155,361.98, 214,367.38 and 90,818.75 is: 125,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,361.98 : 214,367.38 = 90,818.75 : x
  2. Step 2: Convert to fraction form
    155,361.98/214,367.38 = 90,818.75/x
  3. Step 3: Cross multiply
    155,361.98x = 214,367.38 × 90,818.75
  4. Step 4: Simplify right side
    155,361.98x = 19,468,577,801.25
  5. Step 5: Solve for x
    x = 19,468,577,801.25/155,361.98
  6. Step 6: Final answer
    x = 125,311.08

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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.