Home / 157,051.72-216,728.22-85,433.50

Finding the Fourth Proportional to 157,051.72, 216,728.22 and 85,433.50

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Solution

The fourth proportional to 157,051.72, 216,728.22 and 85,433.50 is: 117,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,051.72 : 216,728.22 = 85,433.50 : x
  2. Step 2: Convert to fraction form
    157,051.72/216,728.22 = 85,433.50/x
  3. Step 3: Cross multiply
    157,051.72x = 216,728.22 × 85,433.50
  4. Step 4: Simplify right side
    157,051.72x = 18,515,850,383.37
  5. Step 5: Solve for x
    x = 18,515,850,383.37/157,051.72
  6. Step 6: Final answer
    x = 117,896.51

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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.