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Finding the Fourth Proportional to 147,368.66, 203,369.01 and 80,300.66

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Solution

The fourth proportional to 147,368.66, 203,369.01 and 80,300.66 is: 110,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,368.66 : 203,369.01 = 80,300.66 : x
  2. Step 2: Convert to fraction form
    147,368.66/203,369.01 = 80,300.66/x
  3. Step 3: Cross multiply
    147,368.66x = 203,369.01 × 80,300.66
  4. Step 4: Simplify right side
    147,368.66x = 16,330,665,726.55
  5. Step 5: Solve for x
    x = 16,330,665,726.55/147,368.66
  6. Step 6: Final answer
    x = 110,815.05

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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.