Home / 153,119.57-211,301.07-85,133.03

Finding the Fourth Proportional to 153,119.57, 211,301.07 and 85,133.03

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Solution

The fourth proportional to 153,119.57, 211,301.07 and 85,133.03 is: 117,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,119.57 : 211,301.07 = 85,133.03 : x
  2. Step 2: Convert to fraction form
    153,119.57/211,301.07 = 85,133.03/x
  3. Step 3: Cross multiply
    153,119.57x = 211,301.07 × 85,133.03
  4. Step 4: Simplify right side
    153,119.57x = 17,988,700,331.34
  5. Step 5: Solve for x
    x = 17,988,700,331.34/153,119.57
  6. Step 6: Final answer
    x = 117,481.39

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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.