Home / 209,087.80-288,539.62-113,595.28

Finding the Fourth Proportional to 209,087.80, 288,539.62 and 113,595.28

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Solution

The fourth proportional to 209,087.80, 288,539.62 and 113,595.28 is: 156,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,087.80 : 288,539.62 = 113,595.28 : x
  2. Step 2: Convert to fraction form
    209,087.80/288,539.62 = 113,595.28/x
  3. Step 3: Cross multiply
    209,087.80x = 288,539.62 × 113,595.28
  4. Step 4: Simplify right side
    209,087.80x = 32,776,738,924.99
  5. Step 5: Solve for x
    x = 32,776,738,924.99/209,087.80
  6. Step 6: Final answer
    x = 156,760.65

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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.