Home / 209,442.31-289,031.64-113,949.69

Finding the Fourth Proportional to 209,442.31, 289,031.64 and 113,949.69

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Solution

The fourth proportional to 209,442.31, 289,031.64 and 113,949.69 is: 157,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,442.31 : 289,031.64 = 113,949.69 : x
  2. Step 2: Convert to fraction form
    209,442.31/289,031.64 = 113,949.69/x
  3. Step 3: Cross multiply
    209,442.31x = 289,031.64 × 113,949.69
  4. Step 4: Simplify right side
    209,442.31x = 32,935,064,907.98
  5. Step 5: Solve for x
    x = 32,935,064,907.98/209,442.31
  6. Step 6: Final answer
    x = 157,251.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.