Home / 139,938.27-209,847.60-53,327.40

Finding the Fourth Proportional to 139,938.27, 209,847.60 and 53,327.40

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Solution

The fourth proportional to 139,938.27, 209,847.60 and 53,327.40 is: 79,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,938.27 : 209,847.60 = 53,327.40 : x
  2. Step 2: Convert to fraction form
    139,938.27/209,847.60 = 53,327.40/x
  3. Step 3: Cross multiply
    139,938.27x = 209,847.60 × 53,327.40
  4. Step 4: Simplify right side
    139,938.27x = 11,190,626,904.24
  5. Step 5: Solve for x
    x = 11,190,626,904.24/139,938.27
  6. Step 6: Final answer
    x = 79,968.31

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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.