Home / 161,721.57-242,629.13-66,934.23

Finding the Fourth Proportional to 161,721.57, 242,629.13 and 66,934.23

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Solution

The fourth proportional to 161,721.57, 242,629.13 and 66,934.23 is: 100,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,721.57 : 242,629.13 = 66,934.23 : x
  2. Step 2: Convert to fraction form
    161,721.57/242,629.13 = 66,934.23/x
  3. Step 3: Cross multiply
    161,721.57x = 242,629.13 × 66,934.23
  4. Step 4: Simplify right side
    161,721.57x = 16,240,193,992.12
  5. Step 5: Solve for x
    x = 16,240,193,992.12/161,721.57
  6. Step 6: Final answer
    x = 100,420.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.