Home / 151,445.96-208,996.23-86,910.06

Finding the Fourth Proportional to 151,445.96, 208,996.23 and 86,910.06

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Solution

The fourth proportional to 151,445.96, 208,996.23 and 86,910.06 is: 119,936.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,445.96 : 208,996.23 = 86,910.06 : x
  2. Step 2: Convert to fraction form
    151,445.96/208,996.23 = 86,910.06/x
  3. Step 3: Cross multiply
    151,445.96x = 208,996.23 × 86,910.06
  4. Step 4: Simplify right side
    151,445.96x = 18,163,874,889.07
  5. Step 5: Solve for x
    x = 18,163,874,889.07/151,445.96
  6. Step 6: Final answer
    x = 119,936.34

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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.