Home / 113,638.05-169,115.34-109,853.85

Finding the Fourth Proportional to 113,638.05, 169,115.34 and 109,853.85

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Solution

The fourth proportional to 113,638.05, 169,115.34 and 109,853.85 is: 163,483.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,638.05 : 169,115.34 = 109,853.85 : x
  2. Step 2: Convert to fraction form
    113,638.05/169,115.34 = 109,853.85/x
  3. Step 3: Cross multiply
    113,638.05x = 169,115.34 × 109,853.85
  4. Step 4: Simplify right side
    113,638.05x = 18,577,971,193.06
  5. Step 5: Solve for x
    x = 18,577,971,193.06/113,638.05
  6. Step 6: Final answer
    x = 163,483.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.