Home / 99,200.15-136,897.19-53,878.55

Finding the Fourth Proportional to 99,200.15, 136,897.19 and 53,878.55

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Solution

The fourth proportional to 99,200.15, 136,897.19 and 53,878.55 is: 74,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,200.15 : 136,897.19 = 53,878.55 : x
  2. Step 2: Convert to fraction form
    99,200.15/136,897.19 = 53,878.55/x
  3. Step 3: Cross multiply
    99,200.15x = 136,897.19 × 53,878.55
  4. Step 4: Simplify right side
    99,200.15x = 7,375,821,826.88
  5. Step 5: Solve for x
    x = 7,375,821,826.88/99,200.15
  6. Step 6: Final answer
    x = 74,352.93

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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.