Home / 147,227.02-203,168.86-81,815.63

Finding the Fourth Proportional to 147,227.02, 203,168.86 and 81,815.63

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Solution

The fourth proportional to 147,227.02, 203,168.86 and 81,815.63 is: 112,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,227.02 : 203,168.86 = 81,815.63 : x
  2. Step 2: Convert to fraction form
    147,227.02/203,168.86 = 81,815.63/x
  3. Step 3: Cross multiply
    147,227.02x = 203,168.86 × 81,815.63
  4. Step 4: Simplify right side
    147,227.02x = 16,622,387,914.02
  5. Step 5: Solve for x
    x = 16,622,387,914.02/147,227.02
  6. Step 6: Final answer
    x = 112,903.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.