Home / 209,343.76-288,771.41-131,695.93

Finding the Fourth Proportional to 209,343.76, 288,771.41 and 131,695.93

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Solution

The fourth proportional to 209,343.76, 288,771.41 and 131,695.93 is: 181,663.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,343.76 : 288,771.41 = 131,695.93 : x
  2. Step 2: Convert to fraction form
    209,343.76/288,771.41 = 131,695.93/x
  3. Step 3: Cross multiply
    209,343.76x = 288,771.41 × 131,695.93
  4. Step 4: Simplify right side
    209,343.76x = 38,030,019,099.85
  5. Step 5: Solve for x
    x = 38,030,019,099.85/209,343.76
  6. Step 6: Final answer
    x = 181,663.02

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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.