Home / 98,938.72-136,536.60-58,100.14

Finding the Fourth Proportional to 98,938.72, 136,536.60 and 58,100.14

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Solution

The fourth proportional to 98,938.72, 136,536.60 and 58,100.14 is: 80,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,938.72 : 136,536.60 = 58,100.14 : x
  2. Step 2: Convert to fraction form
    98,938.72/136,536.60 = 58,100.14/x
  3. Step 3: Cross multiply
    98,938.72x = 136,536.60 × 58,100.14
  4. Step 4: Simplify right side
    98,938.72x = 7,932,795,575.12
  5. Step 5: Solve for x
    x = 7,932,795,575.12/98,938.72
  6. Step 6: Final answer
    x = 80,178.88

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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.