Home / 137,711.73-190,049.46-77,279.25

Finding the Fourth Proportional to 137,711.73, 190,049.46 and 77,279.25

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Solution

The fourth proportional to 137,711.73, 190,049.46 and 77,279.25 is: 106,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,711.73 : 190,049.46 = 77,279.25 : x
  2. Step 2: Convert to fraction form
    137,711.73/190,049.46 = 77,279.25/x
  3. Step 3: Cross multiply
    137,711.73x = 190,049.46 × 77,279.25
  4. Step 4: Simplify right side
    137,711.73x = 14,686,879,731.71
  5. Step 5: Solve for x
    x = 14,686,879,731.71/137,711.73
  6. Step 6: Final answer
    x = 106,649.45

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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.