Home / 121,751.04-182,623.32-55,143.12

Finding the Fourth Proportional to 121,751.04, 182,623.32 and 55,143.12

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Solution

The fourth proportional to 121,751.04, 182,623.32 and 55,143.12 is: 82,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,751.04 : 182,623.32 = 55,143.12 : x
  2. Step 2: Convert to fraction form
    121,751.04/182,623.32 = 55,143.12/x
  3. Step 3: Cross multiply
    121,751.04x = 182,623.32 × 55,143.12
  4. Step 4: Simplify right side
    121,751.04x = 10,070,419,649.56
  5. Step 5: Solve for x
    x = 10,070,419,649.56/121,751.04
  6. Step 6: Final answer
    x = 82,713.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.