Home / 102,391.74-141,283.47-57,059.78

Finding the Fourth Proportional to 102,391.74, 141,283.47 and 57,059.78

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Solution

The fourth proportional to 102,391.74, 141,283.47 and 57,059.78 is: 78,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,391.74 : 141,283.47 = 57,059.78 : x
  2. Step 2: Convert to fraction form
    102,391.74/141,283.47 = 57,059.78/x
  3. Step 3: Cross multiply
    102,391.74x = 141,283.47 × 57,059.78
  4. Step 4: Simplify right side
    102,391.74x = 8,061,603,715.84
  5. Step 5: Solve for x
    x = 8,061,603,715.84/102,391.74
  6. Step 6: Final answer
    x = 78,732.95

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1.5x scale

Why These Related Problems?

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