Home / 147,643.32-203,744.94-80,575.80

Finding the Fourth Proportional to 147,643.32, 203,744.94 and 80,575.80

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Solution

The fourth proportional to 147,643.32, 203,744.94 and 80,575.80 is: 111,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,643.32 : 203,744.94 = 80,575.80 : x
  2. Step 2: Convert to fraction form
    147,643.32/203,744.94 = 80,575.80/x
  3. Step 3: Cross multiply
    147,643.32x = 203,744.94 × 80,575.80
  4. Step 4: Simplify right side
    147,643.32x = 16,416,911,536.45
  5. Step 5: Solve for x
    x = 16,416,911,536.45/147,643.32
  6. Step 6: Final answer
    x = 111,193.05

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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.