Home / 137,977.23-190,410.27-77,544.33

Finding the Fourth Proportional to 137,977.23, 190,410.27 and 77,544.33

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Solution

The fourth proportional to 137,977.23, 190,410.27 and 77,544.33 is: 107,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,977.23 : 190,410.27 = 77,544.33 : x
  2. Step 2: Convert to fraction form
    137,977.23/190,410.27 = 77,544.33/x
  3. Step 3: Cross multiply
    137,977.23x = 190,410.27 × 77,544.33
  4. Step 4: Simplify right side
    137,977.23x = 14,765,236,812.27
  5. Step 5: Solve for x
    x = 14,765,236,812.27/137,977.23
  6. Step 6: Final answer
    x = 107,012.13

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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.