Home / 197,194.86-272,143.15-112,311.90

Finding the Fourth Proportional to 197,194.86, 272,143.15 and 112,311.90

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Solution

The fourth proportional to 197,194.86, 272,143.15 and 112,311.90 is: 154,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,194.86 : 272,143.15 = 112,311.90 : x
  2. Step 2: Convert to fraction form
    197,194.86/272,143.15 = 112,311.90/x
  3. Step 3: Cross multiply
    197,194.86x = 272,143.15 × 112,311.90
  4. Step 4: Simplify right side
    197,194.86x = 30,564,913,967.71
  5. Step 5: Solve for x
    x = 30,564,913,967.71/197,194.86
  6. Step 6: Final answer
    x = 154,998.53

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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.