Home / 207,974.64-287,005.02-112,481.31

Finding the Fourth Proportional to 207,974.64, 287,005.02 and 112,481.31

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Solution

The fourth proportional to 207,974.64, 287,005.02 and 112,481.31 is: 155,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,974.64 : 287,005.02 = 112,481.31 : x
  2. Step 2: Convert to fraction form
    207,974.64/287,005.02 = 112,481.31/x
  3. Step 3: Cross multiply
    207,974.64x = 287,005.02 × 112,481.31
  4. Step 4: Simplify right side
    207,974.64x = 32,282,700,626.18
  5. Step 5: Solve for x
    x = 32,282,700,626.18/207,974.64
  6. Step 6: Final answer
    x = 155,224.22

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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.