Home / 149,832.49-206,775.12-86,170.34

Finding the Fourth Proportional to 149,832.49, 206,775.12 and 86,170.34

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Solution

The fourth proportional to 149,832.49, 206,775.12 and 86,170.34 is: 118,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,832.49 : 206,775.12 = 86,170.34 : x
  2. Step 2: Convert to fraction form
    149,832.49/206,775.12 = 86,170.34/x
  3. Step 3: Cross multiply
    149,832.49x = 206,775.12 × 86,170.34
  4. Step 4: Simplify right side
    149,832.49x = 17,817,881,360.07
  5. Step 5: Solve for x
    x = 17,817,881,360.07/149,832.49
  6. Step 6: Final answer
    x = 118,918.68

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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.