Home / 98,639.96-136,124.14-53,318.82

Finding the Fourth Proportional to 98,639.96, 136,124.14 and 53,318.82

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Solution

The fourth proportional to 98,639.96, 136,124.14 and 53,318.82 is: 73,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,639.96 : 136,124.14 = 53,318.82 : x
  2. Step 2: Convert to fraction form
    98,639.96/136,124.14 = 53,318.82/x
  3. Step 3: Cross multiply
    98,639.96x = 136,124.14 × 53,318.82
  4. Step 4: Simplify right side
    98,639.96x = 7,257,978,518.31
  5. Step 5: Solve for x
    x = 7,257,978,518.31/98,639.96
  6. Step 6: Final answer
    x = 73,580.51

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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.