Home / 228,121.90-314,780.61-126,140.38

Finding the Fourth Proportional to 228,121.90, 314,780.61 and 126,140.38

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Solution

The fourth proportional to 228,121.90, 314,780.61 and 126,140.38 is: 174,058.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,121.90 : 314,780.61 = 126,140.38 : x
  2. Step 2: Convert to fraction form
    228,121.90/314,780.61 = 126,140.38/x
  3. Step 3: Cross multiply
    228,121.90x = 314,780.61 × 126,140.38
  4. Step 4: Simplify right side
    228,121.90x = 39,706,545,762.03
  5. Step 5: Solve for x
    x = 39,706,545,762.03/228,121.90
  6. Step 6: Final answer
    x = 174,058.46

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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.