Home / 137,708.84-190,058.10-76,469.24

Finding the Fourth Proportional to 137,708.84, 190,058.10 and 76,469.24

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Solution

The fourth proportional to 137,708.84, 190,058.10 and 76,469.24 is: 105,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,708.84 : 190,058.10 = 76,469.24 : x
  2. Step 2: Convert to fraction form
    137,708.84/190,058.10 = 76,469.24/x
  3. Step 3: Cross multiply
    137,708.84x = 190,058.10 × 76,469.24
  4. Step 4: Simplify right side
    137,708.84x = 14,533,598,462.84
  5. Step 5: Solve for x
    x = 14,533,598,462.84/137,708.84
  6. Step 6: Final answer
    x = 105,538.60

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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.