Home / 209,160.53-288,643.34-113,667.20

Finding the Fourth Proportional to 209,160.53, 288,643.34 and 113,667.20

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Solution

The fourth proportional to 209,160.53, 288,643.34 and 113,667.20 is: 156,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,160.53 : 288,643.34 = 113,667.20 : x
  2. Step 2: Convert to fraction form
    209,160.53/288,643.34 = 113,667.20/x
  3. Step 3: Cross multiply
    209,160.53x = 288,643.34 × 113,667.20
  4. Step 4: Simplify right side
    209,160.53x = 32,809,279,688.11
  5. Step 5: Solve for x
    x = 32,809,279,688.11/209,160.53
  6. Step 6: Final answer
    x = 156,861.72

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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.