Home / 102,020.54-140,809.16-69,844.14

Finding the Fourth Proportional to 102,020.54, 140,809.16 and 69,844.14

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Solution

The fourth proportional to 102,020.54, 140,809.16 and 69,844.14 is: 96,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,020.54 : 140,809.16 = 69,844.14 : x
  2. Step 2: Convert to fraction form
    102,020.54/140,809.16 = 69,844.14/x
  3. Step 3: Cross multiply
    102,020.54x = 140,809.16 × 69,844.14
  4. Step 4: Simplify right side
    102,020.54x = 9,834,694,684.32
  5. Step 5: Solve for x
    x = 9,834,694,684.32/102,020.54
  6. Step 6: Final answer
    x = 96,399.16

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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.