Home / 112,716.15-169,011.03-77,217.57

Finding the Fourth Proportional to 112,716.15, 169,011.03 and 77,217.57

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Solution

The fourth proportional to 112,716.15, 169,011.03 and 77,217.57 is: 115,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,716.15 : 169,011.03 = 77,217.57 : x
  2. Step 2: Convert to fraction form
    112,716.15/169,011.03 = 77,217.57/x
  3. Step 3: Cross multiply
    112,716.15x = 169,011.03 × 77,217.57
  4. Step 4: Simplify right side
    112,716.15x = 13,050,621,039.80
  5. Step 5: Solve for x
    x = 13,050,621,039.80/112,716.15
  6. Step 6: Final answer
    x = 115,783.06

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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.