Home / 201,110.29-277,304.77-128,417.60

Finding the Fourth Proportional to 201,110.29, 277,304.77 and 128,417.60

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Solution

The fourth proportional to 201,110.29, 277,304.77 and 128,417.60 is: 177,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,110.29 : 277,304.77 = 128,417.60 : x
  2. Step 2: Convert to fraction form
    201,110.29/277,304.77 = 128,417.60/x
  3. Step 3: Cross multiply
    201,110.29x = 277,304.77 × 128,417.60
  4. Step 4: Simplify right side
    201,110.29x = 35,610,813,163.39
  5. Step 5: Solve for x
    x = 35,610,813,163.39/201,110.29
  6. Step 6: Final answer
    x = 177,071.06

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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.