Home / 157,611.90-217,496.43-85,991.34

Finding the Fourth Proportional to 157,611.90, 217,496.43 and 85,991.34

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Solution

The fourth proportional to 157,611.90, 217,496.43 and 85,991.34 is: 118,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,611.90 : 217,496.43 = 85,991.34 : x
  2. Step 2: Convert to fraction form
    157,611.90/217,496.43 = 85,991.34/x
  3. Step 3: Cross multiply
    157,611.90x = 217,496.43 × 85,991.34
  4. Step 4: Simplify right side
    157,611.90x = 18,702,809,460.92
  5. Step 5: Solve for x
    x = 18,702,809,460.92/157,611.90
  6. Step 6: Final answer
    x = 118,663.69

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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.