Home / 147,539.64-203,597.10-80,458.68

Finding the Fourth Proportional to 147,539.64, 203,597.10 and 80,458.68

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Solution

The fourth proportional to 147,539.64, 203,597.10 and 80,458.68 is: 111,028.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,539.64 : 203,597.10 = 80,458.68 : x
  2. Step 2: Convert to fraction form
    147,539.64/203,597.10 = 80,458.68/x
  3. Step 3: Cross multiply
    147,539.64x = 203,597.10 × 80,458.68
  4. Step 4: Simplify right side
    147,539.64x = 16,381,153,917.83
  5. Step 5: Solve for x
    x = 16,381,153,917.83/147,539.64
  6. Step 6: Final answer
    x = 111,028.83

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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.