Home / 99,110.66-136,886.23-65,270.42

Finding the Fourth Proportional to 99,110.66, 136,886.23 and 65,270.42

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Solution

The fourth proportional to 99,110.66, 136,886.23 and 65,270.42 is: 90,147.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.66 : 136,886.23 = 65,270.42 : x
  2. Step 2: Convert to fraction form
    99,110.66/136,886.23 = 65,270.42/x
  3. Step 3: Cross multiply
    99,110.66x = 136,886.23 × 65,270.42
  4. Step 4: Simplify right side
    99,110.66x = 8,934,621,039.89
  5. Step 5: Solve for x
    x = 8,934,621,039.89/99,110.66
  6. Step 6: Final answer
    x = 90,147.93

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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.