Home / 158,557.32-218,806.62-86,937.96

Finding the Fourth Proportional to 158,557.32, 218,806.62 and 86,937.96

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Solution

The fourth proportional to 158,557.32, 218,806.62 and 86,937.96 is: 119,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,557.32 : 218,806.62 = 86,937.96 : x
  2. Step 2: Convert to fraction form
    158,557.32/218,806.62 = 86,937.96/x
  3. Step 3: Cross multiply
    158,557.32x = 218,806.62 × 86,937.96
  4. Step 4: Simplify right side
    158,557.32x = 19,022,601,177.30
  5. Step 5: Solve for x
    x = 19,022,601,177.30/158,557.32
  6. Step 6: Final answer
    x = 119,973.02

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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.