Home / 147,171.56-220,736.60-47,319.06

Finding the Fourth Proportional to 147,171.56, 220,736.60 and 47,319.06

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Solution

The fourth proportional to 147,171.56, 220,736.60 and 47,319.06 is: 70,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,171.56 : 220,736.60 = 47,319.06 : x
  2. Step 2: Convert to fraction form
    147,171.56/220,736.60 = 47,319.06/x
  3. Step 3: Cross multiply
    147,171.56x = 220,736.60 × 47,319.06
  4. Step 4: Simplify right side
    147,171.56x = 10,445,048,419.60
  5. Step 5: Solve for x
    x = 10,445,048,419.60/147,171.56
  6. Step 6: Final answer
    x = 70,971.92

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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.