Home / 209,337.21-288,882.63-113,841.87

Finding the Fourth Proportional to 209,337.21, 288,882.63 and 113,841.87

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Solution

The fourth proportional to 209,337.21, 288,882.63 and 113,841.87 is: 157,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,337.21 : 288,882.63 = 113,841.87 : x
  2. Step 2: Convert to fraction form
    209,337.21/288,882.63 = 113,841.87/x
  3. Step 3: Cross multiply
    209,337.21x = 288,882.63 × 113,841.87
  4. Step 4: Simplify right side
    209,337.21x = 32,886,938,809.72
  5. Step 5: Solve for x
    x = 32,886,938,809.72/209,337.21
  6. Step 6: Final answer
    x = 157,100.30

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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.