Home / 119,756.20-179,634.30-82,431.40

Finding the Fourth Proportional to 119,756.20, 179,634.30 and 82,431.40

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Solution

The fourth proportional to 119,756.20, 179,634.30 and 82,431.40 is: 123,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,756.20 : 179,634.30 = 82,431.40 : x
  2. Step 2: Convert to fraction form
    119,756.20/179,634.30 = 82,431.40/x
  3. Step 3: Cross multiply
    119,756.20x = 179,634.30 × 82,431.40
  4. Step 4: Simplify right side
    119,756.20x = 14,807,506,837.02
  5. Step 5: Solve for x
    x = 14,807,506,837.02/119,756.20
  6. Step 6: Final answer
    x = 123,647.10

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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.