Home / 153,174.42-211,364.51-85,180.46

Finding the Fourth Proportional to 153,174.42, 211,364.51 and 85,180.46

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Solution

The fourth proportional to 153,174.42, 211,364.51 and 85,180.46 is: 117,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,174.42 : 211,364.51 = 85,180.46 : x
  2. Step 2: Convert to fraction form
    153,174.42/211,364.51 = 85,180.46/x
  3. Step 3: Cross multiply
    153,174.42x = 211,364.51 × 85,180.46
  4. Step 4: Simplify right side
    153,174.42x = 18,004,124,706.75
  5. Step 5: Solve for x
    x = 18,004,124,706.75/153,174.42
  6. Step 6: Final answer
    x = 117,540.02

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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.