Home / 101,865.31-140,567.09-56,539.73

Finding the Fourth Proportional to 101,865.31, 140,567.09 and 56,539.73

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Solution

The fourth proportional to 101,865.31, 140,567.09 and 56,539.73 is: 78,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,865.31 : 140,567.09 = 56,539.73 : x
  2. Step 2: Convert to fraction form
    101,865.31/140,567.09 = 56,539.73/x
  3. Step 3: Cross multiply
    101,865.31x = 140,567.09 × 56,539.73
  4. Step 4: Simplify right side
    101,865.31x = 7,947,624,964.07
  5. Step 5: Solve for x
    x = 7,947,624,964.07/101,865.31
  6. Step 6: Final answer
    x = 78,020.92

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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.