Home / 186,128.12-256,855.64-101,245.52

Finding the Fourth Proportional to 186,128.12, 256,855.64 and 101,245.52

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Solution

The fourth proportional to 186,128.12, 256,855.64 and 101,245.52 is: 139,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,128.12 : 256,855.64 = 101,245.52 : x
  2. Step 2: Convert to fraction form
    186,128.12/256,855.64 = 101,245.52/x
  3. Step 3: Cross multiply
    186,128.12x = 256,855.64 × 101,245.52
  4. Step 4: Simplify right side
    186,128.12x = 26,005,482,836.73
  5. Step 5: Solve for x
    x = 26,005,482,836.73/186,128.12
  6. Step 6: Final answer
    x = 139,718.18

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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.