Home / 157,812.33-217,782.23-86,191.05

Finding the Fourth Proportional to 157,812.33, 217,782.23 and 86,191.05

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Solution

The fourth proportional to 157,812.33, 217,782.23 and 86,191.05 is: 118,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,812.33 : 217,782.23 = 86,191.05 : x
  2. Step 2: Convert to fraction form
    157,812.33/217,782.23 = 86,191.05/x
  3. Step 3: Cross multiply
    157,812.33x = 217,782.23 × 86,191.05
  4. Step 4: Simplify right side
    157,812.33x = 18,770,878,644.09
  5. Step 5: Solve for x
    x = 18,770,878,644.09/157,812.33
  6. Step 6: Final answer
    x = 118,944.31

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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.