Home / 209,669.54-289,335-114,176.48

Finding the Fourth Proportional to 209,669.54, 289,335 and 114,176.48

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Solution

The fourth proportional to 209,669.54, 289,335 and 114,176.48 is: 157,558.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,669.54 : 289,335 = 114,176.48 : x
  2. Step 2: Convert to fraction form
    209,669.54/289,335 = 114,176.48/x
  3. Step 3: Cross multiply
    209,669.54x = 289,335 × 114,176.48
  4. Step 4: Simplify right side
    209,669.54x = 33,035,251,840.80
  5. Step 5: Solve for x
    x = 33,035,251,840.80/209,669.54
  6. Step 6: Final answer
    x = 157,558.66

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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.