Home / 209,814.72-289,547.55-114,321.30

Finding the Fourth Proportional to 209,814.72, 289,547.55 and 114,321.30

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Solution

The fourth proportional to 209,814.72, 289,547.55 and 114,321.30 is: 157,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,814.72 : 289,547.55 = 114,321.30 : x
  2. Step 2: Convert to fraction form
    209,814.72/289,547.55 = 114,321.30/x
  3. Step 3: Cross multiply
    209,814.72x = 289,547.55 × 114,321.30
  4. Step 4: Simplify right side
    209,814.72x = 33,101,452,327.82
  5. Step 5: Solve for x
    x = 33,101,452,327.82/209,814.72
  6. Step 6: Final answer
    x = 157,765.16

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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.