Home / 156,765.02-216,334.53-85,145.55

Finding the Fourth Proportional to 156,765.02, 216,334.53 and 85,145.55

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Solution

The fourth proportional to 156,765.02, 216,334.53 and 85,145.55 is: 117,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,765.02 : 216,334.53 = 85,145.55 : x
  2. Step 2: Convert to fraction form
    156,765.02/216,334.53 = 85,145.55/x
  3. Step 3: Cross multiply
    156,765.02x = 216,334.53 × 85,145.55
  4. Step 4: Simplify right side
    156,765.02x = 18,419,922,860.14
  5. Step 5: Solve for x
    x = 18,419,922,860.14/156,765.02
  6. Step 6: Final answer
    x = 117,500.21

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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.