Home / 154,937.30-213,817.73-86,958.50

Finding the Fourth Proportional to 154,937.30, 213,817.73 and 86,958.50

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Solution

The fourth proportional to 154,937.30, 213,817.73 and 86,958.50 is: 120,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,937.30 : 213,817.73 = 86,958.50 : x
  2. Step 2: Convert to fraction form
    154,937.30/213,817.73 = 86,958.50/x
  3. Step 3: Cross multiply
    154,937.30x = 213,817.73 × 86,958.50
  4. Step 4: Simplify right side
    154,937.30x = 18,593,267,570.32
  5. Step 5: Solve for x
    x = 18,593,267,570.32/154,937.30
  6. Step 6: Final answer
    x = 120,005.11

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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.