Home / 118,610.92-163,681.61-64,895.16

Finding the Fourth Proportional to 118,610.92, 163,681.61 and 64,895.16

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Solution

The fourth proportional to 118,610.92, 163,681.61 and 64,895.16 is: 89,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,610.92 : 163,681.61 = 64,895.16 : x
  2. Step 2: Convert to fraction form
    118,610.92/163,681.61 = 64,895.16/x
  3. Step 3: Cross multiply
    118,610.92x = 163,681.61 × 64,895.16
  4. Step 4: Simplify right side
    118,610.92x = 10,622,143,945.53
  5. Step 5: Solve for x
    x = 10,622,143,945.53/118,610.92
  6. Step 6: Final answer
    x = 89,554.52

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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.