Home / 207,982.13-287,014.32-112,486.77

Finding the Fourth Proportional to 207,982.13, 287,014.32 and 112,486.77

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Solution

The fourth proportional to 207,982.13, 287,014.32 and 112,486.77 is: 155,231.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,982.13 : 287,014.32 = 112,486.77 : x
  2. Step 2: Convert to fraction form
    207,982.13/287,014.32 = 112,486.77/x
  3. Step 3: Cross multiply
    207,982.13x = 287,014.32 × 112,486.77
  4. Step 4: Simplify right side
    207,982.13x = 32,285,313,800.55
  5. Step 5: Solve for x
    x = 32,285,313,800.55/207,982.13
  6. Step 6: Final answer
    x = 155,231.19

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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.