Home / 163,816.20-245,732.40-85,084.20

Finding the Fourth Proportional to 163,816.20, 245,732.40 and 85,084.20

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Solution

The fourth proportional to 163,816.20, 245,732.40 and 85,084.20 is: 127,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,816.20 : 245,732.40 = 85,084.20 : x
  2. Step 2: Convert to fraction form
    163,816.20/245,732.40 = 85,084.20/x
  3. Step 3: Cross multiply
    163,816.20x = 245,732.40 × 85,084.20
  4. Step 4: Simplify right side
    163,816.20x = 20,907,944,668.08
  5. Step 5: Solve for x
    x = 20,907,944,668.08/163,816.20
  6. Step 6: Final answer
    x = 127,630.51

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1.5x scale

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.