Home / 188,928.13-260,732.69-104,045.20

Finding the Fourth Proportional to 188,928.13, 260,732.69 and 104,045.20

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Solution

The fourth proportional to 188,928.13, 260,732.69 and 104,045.20 is: 143,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,928.13 : 260,732.69 = 104,045.20 : x
  2. Step 2: Convert to fraction form
    188,928.13/260,732.69 = 104,045.20/x
  3. Step 3: Cross multiply
    188,928.13x = 260,732.69 × 104,045.20
  4. Step 4: Simplify right side
    188,928.13x = 27,127,984,877.59
  5. Step 5: Solve for x
    x = 27,127,984,877.59/188,928.13
  6. Step 6: Final answer
    x = 143,588.91

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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.