Home / 137,828.41-190,202.47-77,404.34

Finding the Fourth Proportional to 137,828.41, 190,202.47 and 77,404.34

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Solution

The fourth proportional to 137,828.41, 190,202.47 and 77,404.34 is: 106,817.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,828.41 : 190,202.47 = 77,404.34 : x
  2. Step 2: Convert to fraction form
    137,828.41/190,202.47 = 77,404.34/x
  3. Step 3: Cross multiply
    137,828.41x = 190,202.47 × 77,404.34
  4. Step 4: Simplify right side
    137,828.41x = 14,722,496,938.72
  5. Step 5: Solve for x
    x = 14,722,496,938.72/137,828.41
  6. Step 6: Final answer
    x = 106,817.58

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1.5x scale

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.