Home / 189,629.91-284,455.79-71,302.28

Finding the Fourth Proportional to 189,629.91, 284,455.79 and 71,302.28

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Solution

The fourth proportional to 189,629.91, 284,455.79 and 71,302.28 is: 106,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,629.91 : 284,455.79 = 71,302.28 : x
  2. Step 2: Convert to fraction form
    189,629.91/284,455.79 = 71,302.28/x
  3. Step 3: Cross multiply
    189,629.91x = 284,455.79 × 71,302.28
  4. Step 4: Simplify right side
    189,629.91x = 20,282,345,075.33
  5. Step 5: Solve for x
    x = 20,282,345,075.33/189,629.91
  6. Step 6: Final answer
    x = 106,957.52

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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.