Home / 209,208.42-288,708.30-113,715.50

Finding the Fourth Proportional to 209,208.42, 288,708.30 and 113,715.50

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Solution

The fourth proportional to 209,208.42, 288,708.30 and 113,715.50 is: 156,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,208.42 : 288,708.30 = 113,715.50 : x
  2. Step 2: Convert to fraction form
    209,208.42/288,708.30 = 113,715.50/x
  3. Step 3: Cross multiply
    209,208.42x = 288,708.30 × 113,715.50
  4. Step 4: Simplify right side
    209,208.42x = 32,830,607,245.11
  5. Step 5: Solve for x
    x = 32,830,607,245.11/209,208.42
  6. Step 6: Final answer
    x = 156,927.75

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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.