Home / 98,912.24-136,490.80-58,072.06

Finding the Fourth Proportional to 98,912.24, 136,490.80 and 58,072.06

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Solution

The fourth proportional to 98,912.24, 136,490.80 and 58,072.06 is: 80,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,912.24 : 136,490.80 = 58,072.06 : x
  2. Step 2: Convert to fraction form
    98,912.24/136,490.80 = 58,072.06/x
  3. Step 3: Cross multiply
    98,912.24x = 136,490.80 × 58,072.06
  4. Step 4: Simplify right side
    98,912.24x = 7,926,301,440.64
  5. Step 5: Solve for x
    x = 7,926,301,440.64/98,912.24
  6. Step 6: Final answer
    x = 80,134.69

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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.