Home / 188,436.21-260,028.45-107,862.55

Finding the Fourth Proportional to 188,436.21, 260,028.45 and 107,862.55

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Solution

The fourth proportional to 188,436.21, 260,028.45 and 107,862.55 is: 148,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,436.21 : 260,028.45 = 107,862.55 : x
  2. Step 2: Convert to fraction form
    188,436.21/260,028.45 = 107,862.55/x
  3. Step 3: Cross multiply
    188,436.21x = 260,028.45 × 107,862.55
  4. Step 4: Simplify right side
    188,436.21x = 28,047,331,689.55
  5. Step 5: Solve for x
    x = 28,047,331,689.55/188,436.21
  6. Step 6: Final answer
    x = 148,842.58

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1.5x scale

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.