Home / 188,699.19-283,039.53-70,361.28

Finding the Fourth Proportional to 188,699.19, 283,039.53 and 70,361.28

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Solution

The fourth proportional to 188,699.19, 283,039.53 and 70,361.28 is: 105,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,699.19 : 283,039.53 = 70,361.28 : x
  2. Step 2: Convert to fraction form
    188,699.19/283,039.53 = 70,361.28/x
  3. Step 3: Cross multiply
    188,699.19x = 283,039.53 × 70,361.28
  4. Step 4: Simplify right side
    188,699.19x = 19,915,023,621.40
  5. Step 5: Solve for x
    x = 19,915,023,621.40/188,699.19
  6. Step 6: Final answer
    x = 105,538.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.