Home / 137,993.67-190,436.66-77,564.13

Finding the Fourth Proportional to 137,993.67, 190,436.66 and 77,564.13

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Solution

The fourth proportional to 137,993.67, 190,436.66 and 77,564.13 is: 107,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,993.67 : 190,436.66 = 77,564.13 : x
  2. Step 2: Convert to fraction form
    137,993.67/190,436.66 = 77,564.13/x
  3. Step 3: Cross multiply
    137,993.67x = 190,436.66 × 77,564.13
  4. Step 4: Simplify right side
    137,993.67x = 14,771,053,853.01
  5. Step 5: Solve for x
    x = 14,771,053,853.01/137,993.67
  6. Step 6: Final answer
    x = 107,041.53

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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.