Home / 289,690.16-434,554.34-100,168.85

Finding the Fourth Proportional to 289,690.16, 434,554.34 and 100,168.85

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Solution

The fourth proportional to 289,690.16, 434,554.34 and 100,168.85 is: 150,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,690.16 : 434,554.34 = 100,168.85 : x
  2. Step 2: Convert to fraction form
    289,690.16/434,554.34 = 100,168.85/x
  3. Step 3: Cross multiply
    289,690.16x = 434,554.34 × 100,168.85
  4. Step 4: Simplify right side
    289,690.16x = 43,528,809,085.85
  5. Step 5: Solve for x
    x = 43,528,809,085.85/289,690.16
  6. Step 6: Final answer
    x = 150,259.88

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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.