Home / 137,807.67-190,185.62-77,382.33

Finding the Fourth Proportional to 137,807.67, 190,185.62 and 77,382.33

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Solution

The fourth proportional to 137,807.67, 190,185.62 and 77,382.33 is: 106,793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,807.67 : 190,185.62 = 77,382.33 : x
  2. Step 2: Convert to fraction form
    137,807.67/190,185.62 = 77,382.33/x
  3. Step 3: Cross multiply
    137,807.67x = 190,185.62 × 77,382.33
  4. Step 4: Simplify right side
    137,807.67x = 14,717,006,021.18
  5. Step 5: Solve for x
    x = 14,717,006,021.18/137,807.67
  6. Step 6: Final answer
    x = 106,793.81

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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.