Home / 119,140.34-178,784.38-69,243.94

Finding the Fourth Proportional to 119,140.34, 178,784.38 and 69,243.94

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Solution

The fourth proportional to 119,140.34, 178,784.38 and 69,243.94 is: 103,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,140.34 : 178,784.38 = 69,243.94 : x
  2. Step 2: Convert to fraction form
    119,140.34/178,784.38 = 69,243.94/x
  3. Step 3: Cross multiply
    119,140.34x = 178,784.38 × 69,243.94
  4. Step 4: Simplify right side
    119,140.34x = 12,379,734,881.66
  5. Step 5: Solve for x
    x = 12,379,734,881.66/119,140.34
  6. Step 6: Final answer
    x = 103,908.84

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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.