Home / 186,286.45-257,108.86-109,801.08

Finding the Fourth Proportional to 186,286.45, 257,108.86 and 109,801.08

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Solution

The fourth proportional to 186,286.45, 257,108.86 and 109,801.08 is: 151,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,286.45 : 257,108.86 = 109,801.08 : x
  2. Step 2: Convert to fraction form
    186,286.45/257,108.86 = 109,801.08/x
  3. Step 3: Cross multiply
    186,286.45x = 257,108.86 × 109,801.08
  4. Step 4: Simplify right side
    186,286.45x = 28,230,830,920.72
  5. Step 5: Solve for x
    x = 28,230,830,920.72/186,286.45
  6. Step 6: Final answer
    x = 151,545.27

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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.