Home / 272,565.37-408,909.58-90,195.71

Finding the Fourth Proportional to 272,565.37, 408,909.58 and 90,195.71

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Solution

The fourth proportional to 272,565.37, 408,909.58 and 90,195.71 is: 135,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,565.37 : 408,909.58 = 90,195.71 : x
  2. Step 2: Convert to fraction form
    272,565.37/408,909.58 = 90,195.71/x
  3. Step 3: Cross multiply
    272,565.37x = 408,909.58 × 90,195.71
  4. Step 4: Simplify right side
    272,565.37x = 36,881,889,893.90
  5. Step 5: Solve for x
    x = 36,881,889,893.90/272,565.37
  6. Step 6: Final answer
    x = 135,313.92

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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.