Home / 158,703.98-219,011.75-87,084.55

Finding the Fourth Proportional to 158,703.98, 219,011.75 and 87,084.55

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Solution

The fourth proportional to 158,703.98, 219,011.75 and 87,084.55 is: 120,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,703.98 : 219,011.75 = 87,084.55 : x
  2. Step 2: Convert to fraction form
    158,703.98/219,011.75 = 87,084.55/x
  3. Step 3: Cross multiply
    158,703.98x = 219,011.75 × 87,084.55
  4. Step 4: Simplify right side
    158,703.98x = 19,072,539,858.37
  5. Step 5: Solve for x
    x = 19,072,539,858.37/158,703.98
  6. Step 6: Final answer
    x = 120,176.83

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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.