Home / 99,291.26-148,936.96-28,204.72

Finding the Fourth Proportional to 99,291.26, 148,936.96 and 28,204.72

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Solution

The fourth proportional to 99,291.26, 148,936.96 and 28,204.72 is: 42,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291.26 : 148,936.96 = 28,204.72 : x
  2. Step 2: Convert to fraction form
    99,291.26/148,936.96 = 28,204.72/x
  3. Step 3: Cross multiply
    99,291.26x = 148,936.96 × 28,204.72
  4. Step 4: Simplify right side
    99,291.26x = 4,200,725,254.45
  5. Step 5: Solve for x
    x = 4,200,725,254.45/99,291.26
  6. Step 6: Final answer
    x = 42,307.10

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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.