Home / 156,669.53-216,204.21-85,049.51

Finding the Fourth Proportional to 156,669.53, 216,204.21 and 85,049.51

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Solution

The fourth proportional to 156,669.53, 216,204.21 and 85,049.51 is: 117,368.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,669.53 : 216,204.21 = 85,049.51 : x
  2. Step 2: Convert to fraction form
    156,669.53/216,204.21 = 85,049.51/x
  3. Step 3: Cross multiply
    156,669.53x = 216,204.21 × 85,049.51
  4. Step 4: Simplify right side
    156,669.53x = 18,388,061,039.42
  5. Step 5: Solve for x
    x = 18,388,061,039.42/156,669.53
  6. Step 6: Final answer
    x = 117,368.46

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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.