Home / 189,875.27-284,645.29-71,629.65

Finding the Fourth Proportional to 189,875.27, 284,645.29 and 71,629.65

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Solution

The fourth proportional to 189,875.27, 284,645.29 and 71,629.65 is: 107,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,875.27 : 284,645.29 = 71,629.65 : x
  2. Step 2: Convert to fraction form
    189,875.27/284,645.29 = 71,629.65/x
  3. Step 3: Cross multiply
    189,875.27x = 284,645.29 × 71,629.65
  4. Step 4: Simplify right side
    189,875.27x = 20,389,040,715.47
  5. Step 5: Solve for x
    x = 20,389,040,715.47/189,875.27
  6. Step 6: Final answer
    x = 107,381.24

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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.