Home / 100,685.22-151,027.12-34,172.18

Finding the Fourth Proportional to 100,685.22, 151,027.12 and 34,172.18

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Solution

The fourth proportional to 100,685.22, 151,027.12 and 34,172.18 is: 51,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,685.22 : 151,027.12 = 34,172.18 : x
  2. Step 2: Convert to fraction form
    100,685.22/151,027.12 = 34,172.18/x
  3. Step 3: Cross multiply
    100,685.22x = 151,027.12 × 34,172.18
  4. Step 4: Simplify right side
    100,685.22x = 5,160,925,929.52
  5. Step 5: Solve for x
    x = 5,160,925,929.52/100,685.22
  6. Step 6: Final answer
    x = 51,258.03

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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.