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Finding the Fourth Proportional to 130,357.55, 179,800.47 and 119,636.97

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Solution

The fourth proportional to 130,357.55, 179,800.47 and 119,636.97 is: 165,013.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,357.55 : 179,800.47 = 119,636.97 : x
  2. Step 2: Convert to fraction form
    130,357.55/179,800.47 = 119,636.97/x
  3. Step 3: Cross multiply
    130,357.55x = 179,800.47 × 119,636.97
  4. Step 4: Simplify right side
    130,357.55x = 21,510,783,435.38
  5. Step 5: Solve for x
    x = 21,510,783,435.38/130,357.55
  6. Step 6: Final answer
    x = 165,013.71

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1.5x scale

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.