Home / 163,517.20-245,283.90-84,785.20

Finding the Fourth Proportional to 163,517.20, 245,283.90 and 84,785.20

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Solution

The fourth proportional to 163,517.20, 245,283.90 and 84,785.20 is: 127,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,517.20 : 245,283.90 = 84,785.20 : x
  2. Step 2: Convert to fraction form
    163,517.20/245,283.90 = 84,785.20/x
  3. Step 3: Cross multiply
    163,517.20x = 245,283.90 × 84,785.20
  4. Step 4: Simplify right side
    163,517.20x = 20,796,444,518.28
  5. Step 5: Solve for x
    x = 20,796,444,518.28/163,517.20
  6. Step 6: Final answer
    x = 127,182.00

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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.