Home / 158,809.54-219,157.56-87,194.17

Finding the Fourth Proportional to 158,809.54, 219,157.56 and 87,194.17

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Solution

The fourth proportional to 158,809.54, 219,157.56 and 87,194.17 is: 120,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,809.54 : 219,157.56 = 87,194.17 : x
  2. Step 2: Convert to fraction form
    158,809.54/219,157.56 = 87,194.17/x
  3. Step 3: Cross multiply
    158,809.54x = 219,157.56 × 87,194.17
  4. Step 4: Simplify right side
    158,809.54x = 19,109,261,543.43
  5. Step 5: Solve for x
    x = 19,109,261,543.43/158,809.54
  6. Step 6: Final answer
    x = 120,328.17

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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.