Home / 139,567.10-209,350.65-100,201.10

Finding the Fourth Proportional to 139,567.10, 209,350.65 and 100,201.10

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Solution

The fourth proportional to 139,567.10, 209,350.65 and 100,201.10 is: 150,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,567.10 : 209,350.65 = 100,201.10 : x
  2. Step 2: Convert to fraction form
    139,567.10/209,350.65 = 100,201.10/x
  3. Step 3: Cross multiply
    139,567.10x = 209,350.65 × 100,201.10
  4. Step 4: Simplify right side
    139,567.10x = 20,977,165,415.72
  5. Step 5: Solve for x
    x = 20,977,165,415.72/139,567.10
  6. Step 6: Final answer
    x = 150,301.65

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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.