Home / 128,985.08-193,370.94-49,006.49

Finding the Fourth Proportional to 128,985.08, 193,370.94 and 49,006.49

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Solution

The fourth proportional to 128,985.08, 193,370.94 and 49,006.49 is: 73,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,985.08 : 193,370.94 = 49,006.49 : x
  2. Step 2: Convert to fraction form
    128,985.08/193,370.94 = 49,006.49/x
  3. Step 3: Cross multiply
    128,985.08x = 193,370.94 × 49,006.49
  4. Step 4: Simplify right side
    128,985.08x = 9,476,430,070.55
  5. Step 5: Solve for x
    x = 9,476,430,070.55/128,985.08
  6. Step 6: Final answer
    x = 73,469.20

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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.