Home / 102,480.89-141,423.83-57,157.70

Finding the Fourth Proportional to 102,480.89, 141,423.83 and 57,157.70

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Solution

The fourth proportional to 102,480.89, 141,423.83 and 57,157.70 is: 78,877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,480.89 : 141,423.83 = 57,157.70 : x
  2. Step 2: Convert to fraction form
    102,480.89/141,423.83 = 57,157.70/x
  3. Step 3: Cross multiply
    102,480.89x = 141,423.83 × 57,157.70
  4. Step 4: Simplify right side
    102,480.89x = 8,083,460,627.94
  5. Step 5: Solve for x
    x = 8,083,460,627.94/102,480.89
  6. Step 6: Final answer
    x = 78,877.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.