Home / 98,106.15-135,370.19-57,814.43

Finding the Fourth Proportional to 98,106.15, 135,370.19 and 57,814.43

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Solution

The fourth proportional to 98,106.15, 135,370.19 and 57,814.43 is: 79,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,106.15 : 135,370.19 = 57,814.43 : x
  2. Step 2: Convert to fraction form
    98,106.15/135,370.19 = 57,814.43/x
  3. Step 3: Cross multiply
    98,106.15x = 135,370.19 × 57,814.43
  4. Step 4: Simplify right side
    98,106.15x = 7,826,350,373.84
  5. Step 5: Solve for x
    x = 7,826,350,373.84/98,106.15
  6. Step 6: Final answer
    x = 79,774.31

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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.