Home / 197,420.62-272,440.50-111,397.86

Finding the Fourth Proportional to 197,420.62, 272,440.50 and 111,397.86

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Solution

The fourth proportional to 197,420.62, 272,440.50 and 111,397.86 is: 153,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,420.62 : 272,440.50 = 111,397.86 : x
  2. Step 2: Convert to fraction form
    197,420.62/272,440.50 = 111,397.86/x
  3. Step 3: Cross multiply
    197,420.62x = 272,440.50 × 111,397.86
  4. Step 4: Simplify right side
    197,420.62x = 30,349,288,677.33
  5. Step 5: Solve for x
    x = 30,349,288,677.33/197,420.62
  6. Step 6: Final answer
    x = 153,729.07

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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.