Home / 157,388.25-217,195.45-85,768.10

Finding the Fourth Proportional to 157,388.25, 217,195.45 and 85,768.10

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Solution

The fourth proportional to 157,388.25, 217,195.45 and 85,768.10 is: 118,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.25 : 217,195.45 = 85,768.10 : x
  2. Step 2: Convert to fraction form
    157,388.25/217,195.45 = 85,768.10/x
  3. Step 3: Cross multiply
    157,388.25x = 217,195.45 × 85,768.10
  4. Step 4: Simplify right side
    157,388.25x = 18,628,441,075.15
  5. Step 5: Solve for x
    x = 18,628,441,075.15/157,388.25
  6. Step 6: Final answer
    x = 118,359.80

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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.