Home / 199,977.20-299,479.80-106,276.40

Finding the Fourth Proportional to 199,977.20, 299,479.80 and 106,276.40

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Solution

The fourth proportional to 199,977.20, 299,479.80 and 106,276.40 is: 159,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,977.20 : 299,479.80 = 106,276.40 : x
  2. Step 2: Convert to fraction form
    199,977.20/299,479.80 = 106,276.40/x
  3. Step 3: Cross multiply
    199,977.20x = 299,479.80 × 106,276.40
  4. Step 4: Simplify right side
    199,977.20x = 31,827,635,016.72
  5. Step 5: Solve for x
    x = 31,827,635,016.72/199,977.20
  6. Step 6: Final answer
    x = 159,156.32

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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.