Home / 189,442.48-284,089.32-71,049.28

Finding the Fourth Proportional to 189,442.48, 284,089.32 and 71,049.28

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Solution

The fourth proportional to 189,442.48, 284,089.32 and 71,049.28 is: 106,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,442.48 : 284,089.32 = 71,049.28 : x
  2. Step 2: Convert to fraction form
    189,442.48/284,089.32 = 71,049.28/x
  3. Step 3: Cross multiply
    189,442.48x = 284,089.32 × 71,049.28
  4. Step 4: Simplify right side
    189,442.48x = 20,184,341,641.69
  5. Step 5: Solve for x
    x = 20,184,341,641.69/189,442.48
  6. Step 6: Final answer
    x = 106,546.02

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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.