Home / 84,851.35-126,642.12-83,450.18

Finding the Fourth Proportional to 84,851.35, 126,642.12 and 83,450.18

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Solution

The fourth proportional to 84,851.35, 126,642.12 and 83,450.18 is: 124,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,851.35 : 126,642.12 = 83,450.18 : x
  2. Step 2: Convert to fraction form
    84,851.35/126,642.12 = 83,450.18/x
  3. Step 3: Cross multiply
    84,851.35x = 126,642.12 × 83,450.18
  4. Step 4: Simplify right side
    84,851.35x = 10,568,307,713.25
  5. Step 5: Solve for x
    x = 10,568,307,713.25/84,851.35
  6. Step 6: Final answer
    x = 124,550.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.