Home / 112,101.17-154,666.53-66,756.56

Finding the Fourth Proportional to 112,101.17, 154,666.53 and 66,756.56

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Solution

The fourth proportional to 112,101.17, 154,666.53 and 66,756.56 is: 92,104.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,101.17 : 154,666.53 = 66,756.56 : x
  2. Step 2: Convert to fraction form
    112,101.17/154,666.53 = 66,756.56/x
  3. Step 3: Cross multiply
    112,101.17x = 154,666.53 × 66,756.56
  4. Step 4: Simplify right side
    112,101.17x = 10,325,004,716.60
  5. Step 5: Solve for x
    x = 10,325,004,716.60/112,101.17
  6. Step 6: Final answer
    x = 92,104.35

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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.