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Finding the Fourth Proportional to 147,602.51, 203,691.35 and 80,534.51

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Solution

The fourth proportional to 147,602.51, 203,691.35 and 80,534.51 is: 111,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,602.51 : 203,691.35 = 80,534.51 : x
  2. Step 2: Convert to fraction form
    147,602.51/203,691.35 = 80,534.51/x
  3. Step 3: Cross multiply
    147,602.51x = 203,691.35 × 80,534.51
  4. Step 4: Simplify right side
    147,602.51x = 16,404,182,660.82
  5. Step 5: Solve for x
    x = 16,404,182,660.82/147,602.51
  6. Step 6: Final answer
    x = 111,137.56

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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.