Home / 289,149.57-433,828.08-129,212.10

Finding the Fourth Proportional to 289,149.57, 433,828.08 and 129,212.10

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Solution

The fourth proportional to 289,149.57, 433,828.08 and 129,212.10 is: 193,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,149.57 : 433,828.08 = 129,212.10 : x
  2. Step 2: Convert to fraction form
    289,149.57/433,828.08 = 129,212.10/x
  3. Step 3: Cross multiply
    289,149.57x = 433,828.08 × 129,212.10
  4. Step 4: Simplify right side
    289,149.57x = 56,055,837,255.77
  5. Step 5: Solve for x
    x = 56,055,837,255.77/289,149.57
  6. Step 6: Final answer
    x = 193,864.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.