Home / 209,790.12-289,502.66-114,294.77

Finding the Fourth Proportional to 209,790.12, 289,502.66 and 114,294.77

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Solution

The fourth proportional to 209,790.12, 289,502.66 and 114,294.77 is: 157,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,790.12 : 289,502.66 = 114,294.77 : x
  2. Step 2: Convert to fraction form
    209,790.12/289,502.66 = 114,294.77/x
  3. Step 3: Cross multiply
    209,790.12x = 289,502.66 × 114,294.77
  4. Step 4: Simplify right side
    209,790.12x = 33,088,637,920.10
  5. Step 5: Solve for x
    x = 33,088,637,920.10/209,790.12
  6. Step 6: Final answer
    x = 157,722.57

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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.