Home / 134,214.78-185,142.45-85,066.50

Finding the Fourth Proportional to 134,214.78, 185,142.45 and 85,066.50

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Solution

The fourth proportional to 134,214.78, 185,142.45 and 85,066.50 is: 117,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,214.78 : 185,142.45 = 85,066.50 : x
  2. Step 2: Convert to fraction form
    134,214.78/185,142.45 = 85,066.50/x
  3. Step 3: Cross multiply
    134,214.78x = 185,142.45 × 85,066.50
  4. Step 4: Simplify right side
    134,214.78x = 15,749,420,222.93
  5. Step 5: Solve for x
    x = 15,749,420,222.93/134,214.78
  6. Step 6: Final answer
    x = 117,344.90

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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.