Home / 209,890.65-289,655.16-114,403.53

Finding the Fourth Proportional to 209,890.65, 289,655.16 and 114,403.53

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Solution

The fourth proportional to 209,890.65, 289,655.16 and 114,403.53 is: 157,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,890.65 : 289,655.16 = 114,403.53 : x
  2. Step 2: Convert to fraction form
    209,890.65/289,655.16 = 114,403.53/x
  3. Step 3: Cross multiply
    209,890.65x = 289,655.16 × 114,403.53
  4. Step 4: Simplify right side
    209,890.65x = 33,137,572,786.71
  5. Step 5: Solve for x
    x = 33,137,572,786.71/209,890.65
  6. Step 6: Final answer
    x = 157,880.18

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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.