Home / 153,025.49-211,170.96-85,040.72

Finding the Fourth Proportional to 153,025.49, 211,170.96 and 85,040.72

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Solution

The fourth proportional to 153,025.49, 211,170.96 and 85,040.72 is: 117,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,025.49 : 211,170.96 = 85,040.72 : x
  2. Step 2: Convert to fraction form
    153,025.49/211,170.96 = 85,040.72/x
  3. Step 3: Cross multiply
    153,025.49x = 211,170.96 × 85,040.72
  4. Step 4: Simplify right side
    153,025.49x = 17,958,130,481.49
  5. Step 5: Solve for x
    x = 17,958,130,481.49/153,025.49
  6. Step 6: Final answer
    x = 117,353.85

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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.