Home / 153,025.68-211,171.36-85,040.96

Finding the Fourth Proportional to 153,025.68, 211,171.36 and 85,040.96

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Solution

The fourth proportional to 153,025.68, 211,171.36 and 85,040.96 is: 117,354.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,025.68 : 211,171.36 = 85,040.96 : x
  2. Step 2: Convert to fraction form
    153,025.68/211,171.36 = 85,040.96/x
  3. Step 3: Cross multiply
    153,025.68x = 211,171.36 × 85,040.96
  4. Step 4: Simplify right side
    153,025.68x = 17,958,215,178.91
  5. Step 5: Solve for x
    x = 17,958,215,178.91/153,025.68
  6. Step 6: Final answer
    x = 117,354.26

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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.