Home / 118,948.41-178,072.56-79,407.45

Finding the Fourth Proportional to 118,948.41, 178,072.56 and 79,407.45

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Solution

The fourth proportional to 118,948.41, 178,072.56 and 79,407.45 is: 118,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,948.41 : 178,072.56 = 79,407.45 : x
  2. Step 2: Convert to fraction form
    118,948.41/178,072.56 = 79,407.45/x
  3. Step 3: Cross multiply
    118,948.41x = 178,072.56 × 79,407.45
  4. Step 4: Simplify right side
    118,948.41x = 14,140,287,904.57
  5. Step 5: Solve for x
    x = 14,140,287,904.57/118,948.41
  6. Step 6: Final answer
    x = 118,877.49

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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.