Home / 209,113.94-288,573.08-113,621.32

Finding the Fourth Proportional to 209,113.94, 288,573.08 and 113,621.32

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Solution

The fourth proportional to 209,113.94, 288,573.08 and 113,621.32 is: 156,795.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113.94 : 288,573.08 = 113,621.32 : x
  2. Step 2: Convert to fraction form
    209,113.94/288,573.08 = 113,621.32/x
  3. Step 3: Cross multiply
    209,113.94x = 288,573.08 × 113,621.32
  4. Step 4: Simplify right side
    209,113.94x = 32,788,052,255.09
  5. Step 5: Solve for x
    x = 32,788,052,255.09/209,113.94
  6. Step 6: Final answer
    x = 156,795.16

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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.