Home / 126,837.60-190,278.21-42,605.80

Finding the Fourth Proportional to 126,837.60, 190,278.21 and 42,605.80

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Solution

The fourth proportional to 126,837.60, 190,278.21 and 42,605.80 is: 63,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,837.60 : 190,278.21 = 42,605.80 : x
  2. Step 2: Convert to fraction form
    126,837.60/190,278.21 = 42,605.80/x
  3. Step 3: Cross multiply
    126,837.60x = 190,278.21 × 42,605.80
  4. Step 4: Simplify right side
    126,837.60x = 8,106,955,043.69
  5. Step 5: Solve for x
    x = 8,106,955,043.69/126,837.60
  6. Step 6: Final answer
    x = 63,916.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.