Home / 207,972.31-287,000.95-117,328.28

Finding the Fourth Proportional to 207,972.31, 287,000.95 and 117,328.28

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Solution

The fourth proportional to 207,972.31, 287,000.95 and 117,328.28 is: 161,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,972.31 : 287,000.95 = 117,328.28 : x
  2. Step 2: Convert to fraction form
    207,972.31/287,000.95 = 117,328.28/x
  3. Step 3: Cross multiply
    207,972.31x = 287,000.95 × 117,328.28
  4. Step 4: Simplify right side
    207,972.31x = 33,673,326,093.54
  5. Step 5: Solve for x
    x = 33,673,326,093.54/207,972.31
  6. Step 6: Final answer
    x = 161,912.55

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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.