Home / 157,256.10-217,014.66-85,636.44

Finding the Fourth Proportional to 157,256.10, 217,014.66 and 85,636.44

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Solution

The fourth proportional to 157,256.10, 217,014.66 and 85,636.44 is: 118,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,256.10 : 217,014.66 = 85,636.44 : x
  2. Step 2: Convert to fraction form
    157,256.10/217,014.66 = 85,636.44/x
  3. Step 3: Cross multiply
    157,256.10x = 217,014.66 × 85,636.44
  4. Step 4: Simplify right side
    157,256.10x = 18,584,362,910.21
  5. Step 5: Solve for x
    x = 18,584,362,910.21/157,256.10
  6. Step 6: Final answer
    x = 118,178.96

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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.