Home / 209,089.80-288,542.40-113,597.28

Finding the Fourth Proportional to 209,089.80, 288,542.40 and 113,597.28

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Solution

The fourth proportional to 209,089.80, 288,542.40 and 113,597.28 is: 156,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,089.80 : 288,542.40 = 113,597.28 : x
  2. Step 2: Convert to fraction form
    209,089.80/288,542.40 = 113,597.28/x
  3. Step 3: Cross multiply
    209,089.80x = 288,542.40 × 113,597.28
  4. Step 4: Simplify right side
    209,089.80x = 32,777,631,804.67
  5. Step 5: Solve for x
    x = 32,777,631,804.67/209,089.80
  6. Step 6: Final answer
    x = 156,763.42

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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.