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Finding the Fourth Proportional to 101,219.60, 151,829.40 and 45,815.60

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Solution

The fourth proportional to 101,219.60, 151,829.40 and 45,815.60 is: 68,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,219.60 : 151,829.40 = 45,815.60 : x
  2. Step 2: Convert to fraction form
    101,219.60/151,829.40 = 45,815.60/x
  3. Step 3: Cross multiply
    101,219.60x = 151,829.40 × 45,815.60
  4. Step 4: Simplify right side
    101,219.60x = 6,956,155,058.64
  5. Step 5: Solve for x
    x = 6,956,155,058.64/101,219.60
  6. Step 6: Final answer
    x = 68,723.40

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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.