Home / 155,050.20-213,997.14-91,384.20

Finding the Fourth Proportional to 155,050.20, 213,997.14 and 91,384.20

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Solution

The fourth proportional to 155,050.20, 213,997.14 and 91,384.20 is: 126,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,050.20 : 213,997.14 = 91,384.20 : x
  2. Step 2: Convert to fraction form
    155,050.20/213,997.14 = 91,384.20/x
  3. Step 3: Cross multiply
    155,050.20x = 213,997.14 × 91,384.20
  4. Step 4: Simplify right side
    155,050.20x = 19,555,957,441.19
  5. Step 5: Solve for x
    x = 19,555,957,441.19/155,050.20
  6. Step 6: Final answer
    x = 126,126.62

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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.