Home / 154,669.48-213,436.74-87,601.96

Finding the Fourth Proportional to 154,669.48, 213,436.74 and 87,601.96

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Solution

The fourth proportional to 154,669.48, 213,436.74 and 87,601.96 is: 120,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,669.48 : 213,436.74 = 87,601.96 : x
  2. Step 2: Convert to fraction form
    154,669.48/213,436.74 = 87,601.96/x
  3. Step 3: Cross multiply
    154,669.48x = 213,436.74 × 87,601.96
  4. Step 4: Simplify right side
    154,669.48x = 18,697,476,760.01
  5. Step 5: Solve for x
    x = 18,697,476,760.01/154,669.48
  6. Step 6: Final answer
    x = 120,886.66

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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.