Home / 151,980.85-209,727.05-83,994.31

Finding the Fourth Proportional to 151,980.85, 209,727.05 and 83,994.31

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Solution

The fourth proportional to 151,980.85, 209,727.05 and 83,994.31 is: 115,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,980.85 : 209,727.05 = 83,994.31 : x
  2. Step 2: Convert to fraction form
    151,980.85/209,727.05 = 83,994.31/x
  3. Step 3: Cross multiply
    151,980.85x = 209,727.05 × 83,994.31
  4. Step 4: Simplify right side
    151,980.85x = 17,615,877,908.80
  5. Step 5: Solve for x
    x = 17,615,877,908.80/151,980.85
  6. Step 6: Final answer
    x = 115,908.54

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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.