Home / 102,994.20-154,491.30-79,637.40

Finding the Fourth Proportional to 102,994.20, 154,491.30 and 79,637.40

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Solution

The fourth proportional to 102,994.20, 154,491.30 and 79,637.40 is: 119,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,994.20 : 154,491.30 = 79,637.40 : x
  2. Step 2: Convert to fraction form
    102,994.20/154,491.30 = 79,637.40/x
  3. Step 3: Cross multiply
    102,994.20x = 154,491.30 × 79,637.40
  4. Step 4: Simplify right side
    102,994.20x = 12,303,285,454.62
  5. Step 5: Solve for x
    x = 12,303,285,454.62/102,994.20
  6. Step 6: Final answer
    x = 119,456.10

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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.