Home / 188,520.60-260,158.38-103,643.16

Finding the Fourth Proportional to 188,520.60, 260,158.38 and 103,643.16

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Solution

The fourth proportional to 188,520.60, 260,158.38 and 103,643.16 is: 143,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,520.60 : 260,158.38 = 103,643.16 : x
  2. Step 2: Convert to fraction form
    188,520.60/260,158.38 = 103,643.16/x
  3. Step 3: Cross multiply
    188,520.60x = 260,158.38 × 103,643.16
  4. Step 4: Simplify right side
    188,520.60x = 26,963,636,603.68
  5. Step 5: Solve for x
    x = 26,963,636,603.68/188,520.60
  6. Step 6: Final answer
    x = 143,027.53

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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.