Home / 163,863.20-245,535.60-137,424.80

Finding the Fourth Proportional to 163,863.20, 245,535.60 and 137,424.80

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Solution

The fourth proportional to 163,863.20, 245,535.60 and 137,424.80 is: 205,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,863.20 : 245,535.60 = 137,424.80 : x
  2. Step 2: Convert to fraction form
    163,863.20/245,535.60 = 137,424.80/x
  3. Step 3: Cross multiply
    163,863.20x = 245,535.60 × 137,424.80
  4. Step 4: Simplify right side
    163,863.20x = 33,742,680,722.88
  5. Step 5: Solve for x
    x = 33,742,680,722.88/163,863.20
  6. Step 6: Final answer
    x = 205,919.82

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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.