Home / 209,192.81-288,688.34-113,699.53

Finding the Fourth Proportional to 209,192.81, 288,688.34 and 113,699.53

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Solution

The fourth proportional to 209,192.81, 288,688.34 and 113,699.53 is: 156,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,192.81 : 288,688.34 = 113,699.53 : x
  2. Step 2: Convert to fraction form
    209,192.81/288,688.34 = 113,699.53/x
  3. Step 3: Cross multiply
    209,192.81x = 288,688.34 × 113,699.53
  4. Step 4: Simplify right side
    209,192.81x = 32,823,726,562.54
  5. Step 5: Solve for x
    x = 32,823,726,562.54/209,192.81
  6. Step 6: Final answer
    x = 156,906.57

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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.