Home / 164,880.20-247,320.30-142,329.80

Finding the Fourth Proportional to 164,880.20, 247,320.30 and 142,329.80

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Solution

The fourth proportional to 164,880.20, 247,320.30 and 142,329.80 is: 213,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,880.20 : 247,320.30 = 142,329.80 : x
  2. Step 2: Convert to fraction form
    164,880.20/247,320.30 = 142,329.80/x
  3. Step 3: Cross multiply
    164,880.20x = 247,320.30 × 142,329.80
  4. Step 4: Simplify right side
    164,880.20x = 35,201,048,834.94
  5. Step 5: Solve for x
    x = 35,201,048,834.94/164,880.20
  6. Step 6: Final answer
    x = 213,494.70

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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.