Home / 137,885.51-190,288.82-77,453.03

Finding the Fourth Proportional to 137,885.51, 190,288.82 and 77,453.03

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Solution

The fourth proportional to 137,885.51, 190,288.82 and 77,453.03 is: 106,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,885.51 : 190,288.82 = 77,453.03 : x
  2. Step 2: Convert to fraction form
    137,885.51/190,288.82 = 77,453.03/x
  3. Step 3: Cross multiply
    137,885.51x = 190,288.82 × 77,453.03
  4. Step 4: Simplify right side
    137,885.51x = 14,738,446,353.48
  5. Step 5: Solve for x
    x = 14,738,446,353.48/137,885.51
  6. Step 6: Final answer
    x = 106,889.01

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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.