Home / 197,780.86-272,937.90-117,247.96

Finding the Fourth Proportional to 197,780.86, 272,937.90 and 117,247.96

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Solution

The fourth proportional to 197,780.86, 272,937.90 and 117,247.96 is: 161,802.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,780.86 : 272,937.90 = 117,247.96 : x
  2. Step 2: Convert to fraction form
    197,780.86/272,937.90 = 117,247.96/x
  3. Step 3: Cross multiply
    197,780.86x = 272,937.90 × 117,247.96
  4. Step 4: Simplify right side
    197,780.86x = 32,001,411,981.68
  5. Step 5: Solve for x
    x = 32,001,411,981.68/197,780.86
  6. Step 6: Final answer
    x = 161,802.37

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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.