Home / 139,973.13-209,916.63-40,106.54

Finding the Fourth Proportional to 139,973.13, 209,916.63 and 40,106.54

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Solution

The fourth proportional to 139,973.13, 209,916.63 and 40,106.54 is: 60,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973.13 : 209,916.63 = 40,106.54 : x
  2. Step 2: Convert to fraction form
    139,973.13/209,916.63 = 40,106.54/x
  3. Step 3: Cross multiply
    139,973.13x = 209,916.63 × 40,106.54
  4. Step 4: Simplify right side
    139,973.13x = 8,419,030,242.55
  5. Step 5: Solve for x
    x = 8,419,030,242.55/139,973.13
  6. Step 6: Final answer
    x = 60,147.47

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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.