Home / 139,567.08-209,351.40-34,385.28

Finding the Fourth Proportional to 139,567.08, 209,351.40 and 34,385.28

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Solution

The fourth proportional to 139,567.08, 209,351.40 and 34,385.28 is: 51,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,567.08 : 209,351.40 = 34,385.28 : x
  2. Step 2: Convert to fraction form
    139,567.08/209,351.40 = 34,385.28/x
  3. Step 3: Cross multiply
    139,567.08x = 209,351.40 × 34,385.28
  4. Step 4: Simplify right side
    139,567.08x = 7,198,606,507.39
  5. Step 5: Solve for x
    x = 7,198,606,507.39/139,567.08
  6. Step 6: Final answer
    x = 51,578.11

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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.