Home / 102,453.49-141,386.27-57,131.33

Finding the Fourth Proportional to 102,453.49, 141,386.27 and 57,131.33

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Solution

The fourth proportional to 102,453.49, 141,386.27 and 57,131.33 is: 78,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,453.49 : 141,386.27 = 57,131.33 : x
  2. Step 2: Convert to fraction form
    102,453.49/141,386.27 = 57,131.33/x
  3. Step 3: Cross multiply
    102,453.49x = 141,386.27 × 57,131.33
  4. Step 4: Simplify right side
    102,453.49x = 8,077,585,716.65
  5. Step 5: Solve for x
    x = 8,077,585,716.65/102,453.49
  6. Step 6: Final answer
    x = 78,841.49

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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.