Home / 156,762.86-216,334.35-85,144.28

Finding the Fourth Proportional to 156,762.86, 216,334.35 and 85,144.28

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Solution

The fourth proportional to 156,762.86, 216,334.35 and 85,144.28 is: 117,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,762.86 : 216,334.35 = 85,144.28 : x
  2. Step 2: Convert to fraction form
    156,762.86/216,334.35 = 85,144.28/x
  3. Step 3: Cross multiply
    156,762.86x = 216,334.35 × 85,144.28
  4. Step 4: Simplify right side
    156,762.86x = 18,419,631,388.35
  5. Step 5: Solve for x
    x = 18,419,631,388.35/156,762.86
  6. Step 6: Final answer
    x = 117,499.97

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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.