Home / 157,263.06-217,021.54-85,644.28

Finding the Fourth Proportional to 157,263.06, 217,021.54 and 85,644.28

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Solution

The fourth proportional to 157,263.06, 217,021.54 and 85,644.28 is: 118,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,263.06 : 217,021.54 = 85,644.28 : x
  2. Step 2: Convert to fraction form
    157,263.06/217,021.54 = 85,644.28/x
  3. Step 3: Cross multiply
    157,263.06x = 217,021.54 × 85,644.28
  4. Step 4: Simplify right side
    157,263.06x = 18,586,653,594.96
  5. Step 5: Solve for x
    x = 18,586,653,594.96/157,263.06
  6. Step 6: Final answer
    x = 118,188.30

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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.