Home / 101,559.12-140,149.87-56,236.12

Finding the Fourth Proportional to 101,559.12, 140,149.87 and 56,236.12

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Solution

The fourth proportional to 101,559.12, 140,149.87 and 56,236.12 is: 77,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,559.12 : 140,149.87 = 56,236.12 : x
  2. Step 2: Convert to fraction form
    101,559.12/140,149.87 = 56,236.12/x
  3. Step 3: Cross multiply
    101,559.12x = 140,149.87 × 56,236.12
  4. Step 4: Simplify right side
    101,559.12x = 7,881,484,907.30
  5. Step 5: Solve for x
    x = 7,881,484,907.30/101,559.12
  6. Step 6: Final answer
    x = 77,604.90

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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.