Home / 186,439.82-257,285.63-101,556.88

Finding the Fourth Proportional to 186,439.82, 257,285.63 and 101,556.88

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Solution

The fourth proportional to 186,439.82, 257,285.63 and 101,556.88 is: 140,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,439.82 : 257,285.63 = 101,556.88 : x
  2. Step 2: Convert to fraction form
    186,439.82/257,285.63 = 101,556.88/x
  3. Step 3: Cross multiply
    186,439.82x = 257,285.63 × 101,556.88
  4. Step 4: Simplify right side
    186,439.82x = 26,129,125,462.31
  5. Step 5: Solve for x
    x = 26,129,125,462.31/186,439.82
  6. Step 6: Final answer
    x = 140,147.78

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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.