Home / 134,870.20-202,305.30-85,006.60

Finding the Fourth Proportional to 134,870.20, 202,305.30 and 85,006.60

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Solution

The fourth proportional to 134,870.20, 202,305.30 and 85,006.60 is: 127,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,870.20 : 202,305.30 = 85,006.60 : x
  2. Step 2: Convert to fraction form
    134,870.20/202,305.30 = 85,006.60/x
  3. Step 3: Cross multiply
    134,870.20x = 202,305.30 × 85,006.60
  4. Step 4: Simplify right side
    134,870.20x = 17,197,285,714.98
  5. Step 5: Solve for x
    x = 17,197,285,714.98/134,870.20
  6. Step 6: Final answer
    x = 127,509.90

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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.