Home / 102,520.94-141,478.45-57,196.23

Finding the Fourth Proportional to 102,520.94, 141,478.45 and 57,196.23

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Solution

The fourth proportional to 102,520.94, 141,478.45 and 57,196.23 is: 78,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,520.94 : 141,478.45 = 57,196.23 : x
  2. Step 2: Convert to fraction form
    102,520.94/141,478.45 = 57,196.23/x
  3. Step 3: Cross multiply
    102,520.94x = 141,478.45 × 57,196.23
  4. Step 4: Simplify right side
    102,520.94x = 8,092,033,292.71
  5. Step 5: Solve for x
    x = 8,092,033,292.71/102,520.94
  6. Step 6: Final answer
    x = 78,930.54

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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.