Home / 145,093.57-200,219.36-80,559.47

Finding the Fourth Proportional to 145,093.57, 200,219.36 and 80,559.47

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Solution

The fourth proportional to 145,093.57, 200,219.36 and 80,559.47 is: 111,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,093.57 : 200,219.36 = 80,559.47 : x
  2. Step 2: Convert to fraction form
    145,093.57/200,219.36 = 80,559.47/x
  3. Step 3: Cross multiply
    145,093.57x = 200,219.36 × 80,559.47
  4. Step 4: Simplify right side
    145,093.57x = 16,129,565,852.98
  5. Step 5: Solve for x
    x = 16,129,565,852.98/145,093.57
  6. Step 6: Final answer
    x = 111,166.65

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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.