Home / 148,143.94-204,437.16-80,159.42

Finding the Fourth Proportional to 148,143.94, 204,437.16 and 80,159.42

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Solution

The fourth proportional to 148,143.94, 204,437.16 and 80,159.42 is: 110,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,143.94 : 204,437.16 = 80,159.42 : x
  2. Step 2: Convert to fraction form
    148,143.94/204,437.16 = 80,159.42/x
  3. Step 3: Cross multiply
    148,143.94x = 204,437.16 × 80,159.42
  4. Step 4: Simplify right side
    148,143.94x = 16,387,564,172.05
  5. Step 5: Solve for x
    x = 16,387,564,172.05/148,143.94
  6. Step 6: Final answer
    x = 110,619.20

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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.