Home / 186,395.78-257,229.27-101,512.85

Finding the Fourth Proportional to 186,395.78, 257,229.27 and 101,512.85

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Solution

The fourth proportional to 186,395.78, 257,229.27 and 101,512.85 is: 140,089.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,395.78 : 257,229.27 = 101,512.85 : x
  2. Step 2: Convert to fraction form
    186,395.78/257,229.27 = 101,512.85/x
  3. Step 3: Cross multiply
    186,395.78x = 257,229.27 × 101,512.85
  4. Step 4: Simplify right side
    186,395.78x = 26,112,075,014.97
  5. Step 5: Solve for x
    x = 26,112,075,014.97/186,395.78
  6. Step 6: Final answer
    x = 140,089.41

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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.