Home / 158,534.80-218,777.16-86,917.84

Finding the Fourth Proportional to 158,534.80, 218,777.16 and 86,917.84

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Solution

The fourth proportional to 158,534.80, 218,777.16 and 86,917.84 is: 119,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,534.80 : 218,777.16 = 86,917.84 : x
  2. Step 2: Convert to fraction form
    158,534.80/218,777.16 = 86,917.84/x
  3. Step 3: Cross multiply
    158,534.80x = 218,777.16 × 86,917.84
  4. Step 4: Simplify right side
    158,534.80x = 19,015,638,188.53
  5. Step 5: Solve for x
    x = 19,015,638,188.53/158,534.80
  6. Step 6: Final answer
    x = 119,946.15

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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.