Home / 139,921.48-209,820.46-40,059.01

Finding the Fourth Proportional to 139,921.48, 209,820.46 and 40,059.01

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Solution

The fourth proportional to 139,921.48, 209,820.46 and 40,059.01 is: 60,070.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,921.48 : 209,820.46 = 40,059.01 : x
  2. Step 2: Convert to fraction form
    139,921.48/209,820.46 = 40,059.01/x
  3. Step 3: Cross multiply
    139,921.48x = 209,820.46 × 40,059.01
  4. Step 4: Simplify right side
    139,921.48x = 8,405,199,905.34
  5. Step 5: Solve for x
    x = 8,405,199,905.34/139,921.48
  6. Step 6: Final answer
    x = 60,070.83

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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.