Home / 207,987.04-287,022.17-117,362.21

Finding the Fourth Proportional to 207,987.04, 287,022.17 and 117,362.21

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Solution

The fourth proportional to 207,987.04, 287,022.17 and 117,362.21 is: 161,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,987.04 : 287,022.17 = 117,362.21 : x
  2. Step 2: Convert to fraction form
    207,987.04/287,022.17 = 117,362.21/x
  3. Step 3: Cross multiply
    207,987.04x = 287,022.17 × 117,362.21
  4. Step 4: Simplify right side
    207,987.04x = 33,685,555,603.38
  5. Step 5: Solve for x
    x = 33,685,555,603.38/207,987.04
  6. Step 6: Final answer
    x = 161,959.88

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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.