Home / 155,473.83-214,570.22-91,817.55

Finding the Fourth Proportional to 155,473.83, 214,570.22 and 91,817.55

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Solution

The fourth proportional to 155,473.83, 214,570.22 and 91,817.55 is: 126,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,473.83 : 214,570.22 = 91,817.55 : x
  2. Step 2: Convert to fraction form
    155,473.83/214,570.22 = 91,817.55/x
  3. Step 3: Cross multiply
    155,473.83x = 214,570.22 × 91,817.55
  4. Step 4: Simplify right side
    155,473.83x = 19,701,311,444.27
  5. Step 5: Solve for x
    x = 19,701,311,444.27/155,473.83
  6. Step 6: Final answer
    x = 126,717.86

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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.