Home / 207,709.86-286,639.25-112,216.26

Finding the Fourth Proportional to 207,709.86, 286,639.25 and 112,216.26

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Solution

The fourth proportional to 207,709.86, 286,639.25 and 112,216.26 is: 154,858.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,709.86 : 286,639.25 = 112,216.26 : x
  2. Step 2: Convert to fraction form
    207,709.86/286,639.25 = 112,216.26/x
  3. Step 3: Cross multiply
    207,709.86x = 286,639.25 × 112,216.26
  4. Step 4: Simplify right side
    207,709.86x = 32,165,584,043.12
  5. Step 5: Solve for x
    x = 32,165,584,043.12/207,709.86
  6. Step 6: Final answer
    x = 154,858.24

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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.