Home / 209,669.08-314,445.24-69,438.64

Finding the Fourth Proportional to 209,669.08, 314,445.24 and 69,438.64

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Solution

The fourth proportional to 209,669.08, 314,445.24 and 69,438.64 is: 104,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,669.08 : 314,445.24 = 69,438.64 : x
  2. Step 2: Convert to fraction form
    209,669.08/314,445.24 = 69,438.64/x
  3. Step 3: Cross multiply
    209,669.08x = 314,445.24 × 69,438.64
  4. Step 4: Simplify right side
    209,669.08x = 21,834,649,820.07
  5. Step 5: Solve for x
    x = 21,834,649,820.07/209,669.08
  6. Step 6: Final answer
    x = 104,138.63

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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.