Home / 209,611.19-289,264.77-114,118.88

Finding the Fourth Proportional to 209,611.19, 289,264.77 and 114,118.88

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Solution

The fourth proportional to 209,611.19, 289,264.77 and 114,118.88 is: 157,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,611.19 : 289,264.77 = 114,118.88 : x
  2. Step 2: Convert to fraction form
    209,611.19/289,264.77 = 114,118.88/x
  3. Step 3: Cross multiply
    209,611.19x = 289,264.77 × 114,118.88
  4. Step 4: Simplify right side
    209,611.19x = 33,010,570,129.53
  5. Step 5: Solve for x
    x = 33,010,570,129.53/209,611.19
  6. Step 6: Final answer
    x = 157,484.77

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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.