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Finding the Fourth Proportional to 101,438.60, 151,812.30 and 101,438.60

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Solution

The fourth proportional to 101,438.60, 151,812.30 and 101,438.60 is: 151,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,438.60 : 151,812.30 = 101,438.60 : x
  2. Step 2: Convert to fraction form
    101,438.60/151,812.30 = 101,438.60/x
  3. Step 3: Cross multiply
    101,438.60x = 151,812.30 × 101,438.60
  4. Step 4: Simplify right side
    101,438.60x = 15,399,627,174.78
  5. Step 5: Solve for x
    x = 15,399,627,174.78/101,438.60
  6. Step 6: Final answer
    x = 151,812.30

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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.