Home / 98,147.48-135,440.24-57,860.52

Finding the Fourth Proportional to 98,147.48, 135,440.24 and 57,860.52

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Solution

The fourth proportional to 98,147.48, 135,440.24 and 57,860.52 is: 79,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,147.48 : 135,440.24 = 57,860.52 : x
  2. Step 2: Convert to fraction form
    98,147.48/135,440.24 = 57,860.52/x
  3. Step 3: Cross multiply
    98,147.48x = 135,440.24 × 57,860.52
  4. Step 4: Simplify right side
    98,147.48x = 7,836,642,715.32
  5. Step 5: Solve for x
    x = 7,836,642,715.32/98,147.48
  6. Step 6: Final answer
    x = 79,845.58

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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.