Home / 154,960.96-213,828.48-86,968.72

Finding the Fourth Proportional to 154,960.96, 213,828.48 and 86,968.72

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Solution

The fourth proportional to 154,960.96, 213,828.48 and 86,968.72 is: 120,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,960.96 : 213,828.48 = 86,968.72 : x
  2. Step 2: Convert to fraction form
    154,960.96/213,828.48 = 86,968.72/x
  3. Step 3: Cross multiply
    154,960.96x = 213,828.48 × 86,968.72
  4. Step 4: Simplify right side
    154,960.96x = 18,596,389,205.15
  5. Step 5: Solve for x
    x = 18,596,389,205.15/154,960.96
  6. Step 6: Final answer
    x = 120,006.93

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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.