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Finding the Fourth Proportional to 102,969.40, 154,454.10 and 63,398.20

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Solution

The fourth proportional to 102,969.40, 154,454.10 and 63,398.20 is: 95,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,969.40 : 154,454.10 = 63,398.20 : x
  2. Step 2: Convert to fraction form
    102,969.40/154,454.10 = 63,398.20/x
  3. Step 3: Cross multiply
    102,969.40x = 154,454.10 × 63,398.20
  4. Step 4: Simplify right side
    102,969.40x = 9,792,111,922.62
  5. Step 5: Solve for x
    x = 9,792,111,922.62/102,969.40
  6. Step 6: Final answer
    x = 95,097.30

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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.