Home / 117,975.09-162,841.20-80,271.21

Finding the Fourth Proportional to 117,975.09, 162,841.20 and 80,271.21

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Solution

The fourth proportional to 117,975.09, 162,841.20 and 80,271.21 is: 110,798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,975.09 : 162,841.20 = 80,271.21 : x
  2. Step 2: Convert to fraction form
    117,975.09/162,841.20 = 80,271.21/x
  3. Step 3: Cross multiply
    117,975.09x = 162,841.20 × 80,271.21
  4. Step 4: Simplify right side
    117,975.09x = 13,071,460,161.85
  5. Step 5: Solve for x
    x = 13,071,460,161.85/117,975.09
  6. Step 6: Final answer
    x = 110,798.48

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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.