Home / 104,091.75-156,141.95-30,219.75

Finding the Fourth Proportional to 104,091.75, 156,141.95 and 30,219.75

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Solution

The fourth proportional to 104,091.75, 156,141.95 and 30,219.75 is: 45,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,091.75 : 156,141.95 = 30,219.75 : x
  2. Step 2: Convert to fraction form
    104,091.75/156,141.95 = 30,219.75/x
  3. Step 3: Cross multiply
    104,091.75x = 156,141.95 × 30,219.75
  4. Step 4: Simplify right side
    104,091.75x = 4,718,570,693.51
  5. Step 5: Solve for x
    x = 4,718,570,693.51/104,091.75
  6. Step 6: Final answer
    x = 45,330.88

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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.