Home / 189,695.12-261,756.81-113,200.02

Finding the Fourth Proportional to 189,695.12, 261,756.81 and 113,200.02

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Solution

The fourth proportional to 189,695.12, 261,756.81 and 113,200.02 is: 156,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,695.12 : 261,756.81 = 113,200.02 : x
  2. Step 2: Convert to fraction form
    189,695.12/261,756.81 = 113,200.02/x
  3. Step 3: Cross multiply
    189,695.12x = 261,756.81 × 113,200.02
  4. Step 4: Simplify right side
    189,695.12x = 29,630,876,127.14
  5. Step 5: Solve for x
    x = 29,630,876,127.14/189,695.12
  6. Step 6: Final answer
    x = 156,202.63

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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.