Home / 158,545.20-218,787.64-86,922.77

Finding the Fourth Proportional to 158,545.20, 218,787.64 and 86,922.77

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Solution

The fourth proportional to 158,545.20, 218,787.64 and 86,922.77 is: 119,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,545.20 : 218,787.64 = 86,922.77 : x
  2. Step 2: Convert to fraction form
    158,545.20/218,787.64 = 86,922.77/x
  3. Step 3: Cross multiply
    158,545.20x = 218,787.64 × 86,922.77
  4. Step 4: Simplify right side
    158,545.20x = 19,017,628,040.23
  5. Step 5: Solve for x
    x = 19,017,628,040.23/158,545.20
  6. Step 6: Final answer
    x = 119,950.83

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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.