Home / 207,986.73-287,021.37-112,493.13

Finding the Fourth Proportional to 207,986.73, 287,021.37 and 112,493.13

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Solution

The fourth proportional to 207,986.73, 287,021.37 and 112,493.13 is: 155,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,986.73 : 287,021.37 = 112,493.13 : x
  2. Step 2: Convert to fraction form
    207,986.73/287,021.37 = 112,493.13/x
  3. Step 3: Cross multiply
    207,986.73x = 287,021.37 × 112,493.13
  4. Step 4: Simplify right side
    207,986.73x = 32,287,932,288.19
  5. Step 5: Solve for x
    x = 32,287,932,288.19/207,986.73
  6. Step 6: Final answer
    x = 155,240.35

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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.