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Finding the Fourth Proportional to 119,778.40, 179,667.60 and 40,866.40

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Solution

The fourth proportional to 119,778.40, 179,667.60 and 40,866.40 is: 61,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.40 : 179,667.60 = 40,866.40 : x
  2. Step 2: Convert to fraction form
    119,778.40/179,667.60 = 40,866.40/x
  3. Step 3: Cross multiply
    119,778.40x = 179,667.60 × 40,866.40
  4. Step 4: Simplify right side
    119,778.40x = 7,342,368,008.64
  5. Step 5: Solve for x
    x = 7,342,368,008.64/119,778.40
  6. Step 6: Final answer
    x = 61,299.60

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1.5x scale

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.