Home / 102,796.20-154,194.30-79,439.40

Finding the Fourth Proportional to 102,796.20, 154,194.30 and 79,439.40

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Solution

The fourth proportional to 102,796.20, 154,194.30 and 79,439.40 is: 119,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,796.20 : 154,194.30 = 79,439.40 : x
  2. Step 2: Convert to fraction form
    102,796.20/154,194.30 = 79,439.40/x
  3. Step 3: Cross multiply
    102,796.20x = 154,194.30 × 79,439.40
  4. Step 4: Simplify right side
    102,796.20x = 12,249,102,675.42
  5. Step 5: Solve for x
    x = 12,249,102,675.42/102,796.20
  6. Step 6: Final answer
    x = 119,159.10

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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.