Home / 209,519.04-289,235.16-134,111.28

Finding the Fourth Proportional to 209,519.04, 289,235.16 and 134,111.28

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Solution

The fourth proportional to 209,519.04, 289,235.16 and 134,111.28 is: 185,136.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,519.04 : 289,235.16 = 134,111.28 : x
  2. Step 2: Convert to fraction form
    209,519.04/289,235.16 = 134,111.28/x
  3. Step 3: Cross multiply
    209,519.04x = 289,235.16 × 134,111.28
  4. Step 4: Simplify right side
    209,519.04x = 38,789,697,528.60
  5. Step 5: Solve for x
    x = 38,789,697,528.60/209,519.04
  6. Step 6: Final answer
    x = 185,136.86

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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.