Home / 103,131.66-142,323.14-62,847.12

Finding the Fourth Proportional to 103,131.66, 142,323.14 and 62,847.12

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Solution

The fourth proportional to 103,131.66, 142,323.14 and 62,847.12 is: 86,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.66 : 142,323.14 = 62,847.12 : x
  2. Step 2: Convert to fraction form
    103,131.66/142,323.14 = 62,847.12/x
  3. Step 3: Cross multiply
    103,131.66x = 142,323.14 × 62,847.12
  4. Step 4: Simplify right side
    103,131.66x = 8,944,599,458.36
  5. Step 5: Solve for x
    x = 8,944,599,458.36/103,131.66
  6. Step 6: Final answer
    x = 86,729.91

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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.