Home / 209,354.12-288,900.35-113,860.89

Finding the Fourth Proportional to 209,354.12, 288,900.35 and 113,860.89

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Solution

The fourth proportional to 209,354.12, 288,900.35 and 113,860.89 is: 157,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,354.12 : 288,900.35 = 113,860.89 : x
  2. Step 2: Convert to fraction form
    209,354.12/288,900.35 = 113,860.89/x
  3. Step 3: Cross multiply
    209,354.12x = 288,900.35 × 113,860.89
  4. Step 4: Simplify right side
    209,354.12x = 32,894,450,509.75
  5. Step 5: Solve for x
    x = 32,894,450,509.75/209,354.12
  6. Step 6: Final answer
    x = 157,123.49

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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.