Home / 98,804.56-136,313.79-64,859.18

Finding the Fourth Proportional to 98,804.56, 136,313.79 and 64,859.18

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Solution

The fourth proportional to 98,804.56, 136,313.79 and 64,859.18 is: 89,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,804.56 : 136,313.79 = 64,859.18 : x
  2. Step 2: Convert to fraction form
    98,804.56/136,313.79 = 64,859.18/x
  3. Step 3: Cross multiply
    98,804.56x = 136,313.79 × 64,859.18
  4. Step 4: Simplify right side
    98,804.56x = 8,841,200,484.07
  5. Step 5: Solve for x
    x = 8,841,200,484.07/98,804.56
  6. Step 6: Final answer
    x = 89,481.71

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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.