Home / 100,485.48-138,670.04-60,222.62

Finding the Fourth Proportional to 100,485.48, 138,670.04 and 60,222.62

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Solution

The fourth proportional to 100,485.48, 138,670.04 and 60,222.62 is: 83,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,485.48 : 138,670.04 = 60,222.62 : x
  2. Step 2: Convert to fraction form
    100,485.48/138,670.04 = 60,222.62/x
  3. Step 3: Cross multiply
    100,485.48x = 138,670.04 × 60,222.62
  4. Step 4: Simplify right side
    100,485.48x = 8,351,073,124.30
  5. Step 5: Solve for x
    x = 8,351,073,124.30/100,485.48
  6. Step 6: Final answer
    x = 83,107.26

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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.