Home / 137,716.98-190,048.68-77,287.56

Finding the Fourth Proportional to 137,716.98, 190,048.68 and 77,287.56

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Solution

The fourth proportional to 137,716.98, 190,048.68 and 77,287.56 is: 106,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,716.98 : 190,048.68 = 77,287.56 : x
  2. Step 2: Convert to fraction form
    137,716.98/190,048.68 = 77,287.56/x
  3. Step 3: Cross multiply
    137,716.98x = 190,048.68 × 77,287.56
  4. Step 4: Simplify right side
    137,716.98x = 14,688,398,758.42
  5. Step 5: Solve for x
    x = 14,688,398,758.42/137,716.98
  6. Step 6: Final answer
    x = 106,656.41

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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.