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Finding the Fourth Proportional to 111,212.72, 153,475.08 and 60,912.08

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Solution

The fourth proportional to 111,212.72, 153,475.08 and 60,912.08 is: 84,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,212.72 : 153,475.08 = 60,912.08 : x
  2. Step 2: Convert to fraction form
    111,212.72/153,475.08 = 60,912.08/x
  3. Step 3: Cross multiply
    111,212.72x = 153,475.08 × 60,912.08
  4. Step 4: Simplify right side
    111,212.72x = 9,348,486,350.97
  5. Step 5: Solve for x
    x = 9,348,486,350.97/111,212.72
  6. Step 6: Final answer
    x = 84,059.51

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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.