Home / 127,018.41-190,536.93-42,778.14

Finding the Fourth Proportional to 127,018.41, 190,536.93 and 42,778.14

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Solution

The fourth proportional to 127,018.41, 190,536.93 and 42,778.14 is: 64,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,018.41 : 190,536.93 = 42,778.14 : x
  2. Step 2: Convert to fraction form
    127,018.41/190,536.93 = 42,778.14/x
  3. Step 3: Cross multiply
    127,018.41x = 190,536.93 × 42,778.14
  4. Step 4: Simplify right side
    127,018.41x = 8,150,815,466.71
  5. Step 5: Solve for x
    x = 8,150,815,466.71/127,018.41
  6. Step 6: Final answer
    x = 64,170.35

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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.