Home / 118,666.36-178,122.58-79,497.20

Finding the Fourth Proportional to 118,666.36, 178,122.58 and 79,497.20

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Solution

The fourth proportional to 118,666.36, 178,122.58 and 79,497.20 is: 119,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.36 : 178,122.58 = 79,497.20 : x
  2. Step 2: Convert to fraction form
    118,666.36/178,122.58 = 79,497.20/x
  3. Step 3: Cross multiply
    118,666.36x = 178,122.58 × 79,497.20
  4. Step 4: Simplify right side
    118,666.36x = 14,160,246,366.78
  5. Step 5: Solve for x
    x = 14,160,246,366.78/118,666.36
  6. Step 6: Final answer
    x = 119,328.23

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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.