Home / 157,412.85-236,189.07-82,515.12

Finding the Fourth Proportional to 157,412.85, 236,189.07 and 82,515.12

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Solution

The fourth proportional to 157,412.85, 236,189.07 and 82,515.12 is: 123,809.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,412.85 : 236,189.07 = 82,515.12 : x
  2. Step 2: Convert to fraction form
    157,412.85/236,189.07 = 82,515.12/x
  3. Step 3: Cross multiply
    157,412.85x = 236,189.07 × 82,515.12
  4. Step 4: Simplify right side
    157,412.85x = 19,489,169,453.74
  5. Step 5: Solve for x
    x = 19,489,169,453.74/157,412.85
  6. Step 6: Final answer
    x = 123,809.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.