Home / 104,121.02-143,615.82-65,929.16

Finding the Fourth Proportional to 104,121.02, 143,615.82 and 65,929.16

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Solution

The fourth proportional to 104,121.02, 143,615.82 and 65,929.16 is: 90,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,121.02 : 143,615.82 = 65,929.16 : x
  2. Step 2: Convert to fraction form
    104,121.02/143,615.82 = 65,929.16/x
  3. Step 3: Cross multiply
    104,121.02x = 143,615.82 × 65,929.16
  4. Step 4: Simplify right side
    104,121.02x = 9,468,470,375.31
  5. Step 5: Solve for x
    x = 9,468,470,375.31/104,121.02
  6. Step 6: Final answer
    x = 90,937.16

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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.