Home / 158,178.08-218,285.73-86,558.11

Finding the Fourth Proportional to 158,178.08, 218,285.73 and 86,558.11

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Solution

The fourth proportional to 158,178.08, 218,285.73 and 86,558.11 is: 119,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,178.08 : 218,285.73 = 86,558.11 : x
  2. Step 2: Convert to fraction form
    158,178.08/218,285.73 = 86,558.11/x
  3. Step 3: Cross multiply
    158,178.08x = 218,285.73 × 86,558.11
  4. Step 4: Simplify right side
    158,178.08x = 18,894,400,228.77
  5. Step 5: Solve for x
    x = 18,894,400,228.77/158,178.08
  6. Step 6: Final answer
    x = 119,450.18

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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.