Home / 103,820.08-155,680.86-53,850.16

Finding the Fourth Proportional to 103,820.08, 155,680.86 and 53,850.16

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Solution

The fourth proportional to 103,820.08, 155,680.86 and 53,850.16 is: 80,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,820.08 : 155,680.86 = 53,850.16 : x
  2. Step 2: Convert to fraction form
    103,820.08/155,680.86 = 53,850.16/x
  3. Step 3: Cross multiply
    103,820.08x = 155,680.86 × 53,850.16
  4. Step 4: Simplify right side
    103,820.08x = 8,383,439,219.94
  5. Step 5: Solve for x
    x = 8,383,439,219.94/103,820.08
  6. Step 6: Final answer
    x = 80,749.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.