Home / 186,128.48-256,859.30-101,245.75

Finding the Fourth Proportional to 186,128.48, 256,859.30 and 101,245.75

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Solution

The fourth proportional to 186,128.48, 256,859.30 and 101,245.75 is: 139,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.48 : 256,859.30 = 101,245.75 : x
  2. Step 2: Convert to fraction form
    186,128.48/256,859.30 = 101,245.75/x
  3. Step 3: Cross multiply
    186,128.48x = 256,859.30 × 101,245.75
  4. Step 4: Simplify right side
    186,128.48x = 26,005,912,472.98
  5. Step 5: Solve for x
    x = 26,005,912,472.98/186,128.48
  6. Step 6: Final answer
    x = 139,720.22

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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.