Home / 119,330.77-178,986.75-69,379

Finding the Fourth Proportional to 119,330.77, 178,986.75 and 69,379

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Solution

The fourth proportional to 119,330.77, 178,986.75 and 69,379 is: 104,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,330.77 : 178,986.75 = 69,379 : x
  2. Step 2: Convert to fraction form
    119,330.77/178,986.75 = 69,379/x
  3. Step 3: Cross multiply
    119,330.77x = 178,986.75 × 69,379
  4. Step 4: Simplify right side
    119,330.77x = 12,417,921,728.25
  5. Step 5: Solve for x
    x = 12,417,921,728.25/119,330.77
  6. Step 6: Final answer
    x = 104,063.03

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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.