Home / 155,384.28-214,427.52-90,859.68

Finding the Fourth Proportional to 155,384.28, 214,427.52 and 90,859.68

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Solution

The fourth proportional to 155,384.28, 214,427.52 and 90,859.68 is: 125,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,384.28 : 214,427.52 = 90,859.68 : x
  2. Step 2: Convert to fraction form
    155,384.28/214,427.52 = 90,859.68/x
  3. Step 3: Cross multiply
    155,384.28x = 214,427.52 × 90,859.68
  4. Step 4: Simplify right side
    155,384.28x = 19,482,815,850.39
  5. Step 5: Solve for x
    x = 19,482,815,850.39/155,384.28
  6. Step 6: Final answer
    x = 125,384.73

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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.