Home / 209,068.94-288,515.85-123,031.28

Finding the Fourth Proportional to 209,068.94, 288,515.85 and 123,031.28

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Solution

The fourth proportional to 209,068.94, 288,515.85 and 123,031.28 is: 169,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,068.94 : 288,515.85 = 123,031.28 : x
  2. Step 2: Convert to fraction form
    209,068.94/288,515.85 = 123,031.28/x
  3. Step 3: Cross multiply
    209,068.94x = 288,515.85 × 123,031.28
  4. Step 4: Simplify right side
    209,068.94x = 35,496,474,325.79
  5. Step 5: Solve for x
    x = 35,496,474,325.79/209,068.94
  6. Step 6: Final answer
    x = 169,783.59

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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.