Home / 98,338.10-135,378.54-93,819.06

Finding the Fourth Proportional to 98,338.10, 135,378.54 and 93,819.06

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Solution

The fourth proportional to 98,338.10, 135,378.54 and 93,819.06 is: 129,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,338.10 : 135,378.54 = 93,819.06 : x
  2. Step 2: Convert to fraction form
    98,338.10/135,378.54 = 93,819.06/x
  3. Step 3: Cross multiply
    98,338.10x = 135,378.54 × 93,819.06
  4. Step 4: Simplify right side
    98,338.10x = 12,701,087,366.97
  5. Step 5: Solve for x
    x = 12,701,087,366.97/98,338.10
  6. Step 6: Final answer
    x = 129,157.35

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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.