Home / 289,153.10-433,853.70-111,784.68

Finding the Fourth Proportional to 289,153.10, 433,853.70 and 111,784.68

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Solution

The fourth proportional to 289,153.10, 433,853.70 and 111,784.68 is: 167,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,153.10 : 433,853.70 = 111,784.68 : x
  2. Step 2: Convert to fraction form
    289,153.10/433,853.70 = 111,784.68/x
  3. Step 3: Cross multiply
    289,153.10x = 433,853.70 × 111,784.68
  4. Step 4: Simplify right side
    289,153.10x = 48,498,197,021.32
  5. Step 5: Solve for x
    x = 48,498,197,021.32/289,153.10
  6. Step 6: Final answer
    x = 167,724.98

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1.5x scale

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.