Home / 106,591.40-159,887.10-76,653.80

Finding the Fourth Proportional to 106,591.40, 159,887.10 and 76,653.80

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Solution

The fourth proportional to 106,591.40, 159,887.10 and 76,653.80 is: 114,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,591.40 : 159,887.10 = 76,653.80 : x
  2. Step 2: Convert to fraction form
    106,591.40/159,887.10 = 76,653.80/x
  3. Step 3: Cross multiply
    106,591.40x = 159,887.10 × 76,653.80
  4. Step 4: Simplify right side
    106,591.40x = 12,255,953,785.98
  5. Step 5: Solve for x
    x = 12,255,953,785.98/106,591.40
  6. Step 6: Final answer
    x = 114,980.70

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1.5x scale

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.