Home / 101,680.19-140,303.65-56,357.96

Finding the Fourth Proportional to 101,680.19, 140,303.65 and 56,357.96

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Solution

The fourth proportional to 101,680.19, 140,303.65 and 56,357.96 is: 77,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,680.19 : 140,303.65 = 56,357.96 : x
  2. Step 2: Convert to fraction form
    101,680.19/140,303.65 = 56,357.96/x
  3. Step 3: Cross multiply
    101,680.19x = 140,303.65 × 56,357.96
  4. Step 4: Simplify right side
    101,680.19x = 7,907,228,356.87
  5. Step 5: Solve for x
    x = 7,907,228,356.87/101,680.19
  6. Step 6: Final answer
    x = 77,765.68

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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.