Home / 188,512.77-260,148.47-103,635.30

Finding the Fourth Proportional to 188,512.77, 260,148.47 and 103,635.30

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Solution

The fourth proportional to 188,512.77, 260,148.47 and 103,635.30 is: 143,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,512.77 : 260,148.47 = 103,635.30 : x
  2. Step 2: Convert to fraction form
    188,512.77/260,148.47 = 103,635.30/x
  3. Step 3: Cross multiply
    188,512.77x = 260,148.47 × 103,635.30
  4. Step 4: Simplify right side
    188,512.77x = 26,960,564,732.99
  5. Step 5: Solve for x
    x = 26,960,564,732.99/188,512.77
  6. Step 6: Final answer
    x = 143,017.18

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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.