Home / 79,803.12-119,351.73-70,980.36

Finding the Fourth Proportional to 79,803.12, 119,351.73 and 70,980.36

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Solution

The fourth proportional to 79,803.12, 119,351.73 and 70,980.36 is: 106,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,803.12 : 119,351.73 = 70,980.36 : x
  2. Step 2: Convert to fraction form
    79,803.12/119,351.73 = 70,980.36/x
  3. Step 3: Cross multiply
    79,803.12x = 119,351.73 × 70,980.36
  4. Step 4: Simplify right side
    79,803.12x = 8,471,628,762.02
  5. Step 5: Solve for x
    x = 8,471,628,762.02/79,803.12
  6. Step 6: Final answer
    x = 106,156.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.