Home / 209,206.96-288,707.32-113,713.68

Finding the Fourth Proportional to 209,206.96, 288,707.32 and 113,713.68

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Solution

The fourth proportional to 209,206.96, 288,707.32 and 113,713.68 is: 156,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,206.96 : 288,707.32 = 113,713.68 : x
  2. Step 2: Convert to fraction form
    209,206.96/288,707.32 = 113,713.68/x
  3. Step 3: Cross multiply
    209,206.96x = 288,707.32 × 113,713.68
  4. Step 4: Simplify right side
    209,206.96x = 32,829,971,800.14
  5. Step 5: Solve for x
    x = 32,829,971,800.14/209,206.96
  6. Step 6: Final answer
    x = 156,925.81

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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.