Home / 102,323.88-141,194.10-56,990.44

Finding the Fourth Proportional to 102,323.88, 141,194.10 and 56,990.44

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Solution

The fourth proportional to 102,323.88, 141,194.10 and 56,990.44 is: 78,639.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,323.88 : 141,194.10 = 56,990.44 : x
  2. Step 2: Convert to fraction form
    102,323.88/141,194.10 = 56,990.44/x
  3. Step 3: Cross multiply
    102,323.88x = 141,194.10 × 56,990.44
  4. Step 4: Simplify right side
    102,323.88x = 8,046,713,884.40
  5. Step 5: Solve for x
    x = 8,046,713,884.40/102,323.88
  6. Step 6: Final answer
    x = 78,639.65

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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.