Home / 118,667.36-178,124.08-79,498.20

Finding the Fourth Proportional to 118,667.36, 178,124.08 and 79,498.20

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Solution

The fourth proportional to 118,667.36, 178,124.08 and 79,498.20 is: 119,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,667.36 : 178,124.08 = 79,498.20 : x
  2. Step 2: Convert to fraction form
    118,667.36/178,124.08 = 79,498.20/x
  3. Step 3: Cross multiply
    118,667.36x = 178,124.08 × 79,498.20
  4. Step 4: Simplify right side
    118,667.36x = 14,160,543,736.66
  5. Step 5: Solve for x
    x = 14,160,543,736.66/118,667.36
  6. Step 6: Final answer
    x = 119,329.73

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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.