Home / 142,774.11-214,006.32-92,889.72

Finding the Fourth Proportional to 142,774.11, 214,006.32 and 92,889.72

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Solution

The fourth proportional to 142,774.11, 214,006.32 and 92,889.72 is: 139,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,774.11 : 214,006.32 = 92,889.72 : x
  2. Step 2: Convert to fraction form
    142,774.11/214,006.32 = 92,889.72/x
  3. Step 3: Cross multiply
    142,774.11x = 214,006.32 × 92,889.72
  4. Step 4: Simplify right side
    142,774.11x = 19,878,987,143.03
  5. Step 5: Solve for x
    x = 19,878,987,143.03/142,774.11
  6. Step 6: Final answer
    x = 139,233.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.