Home / 186,290.37-257,108.39-109,785.00

Finding the Fourth Proportional to 186,290.37, 257,108.39 and 109,785.00

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Solution

The fourth proportional to 186,290.37, 257,108.39 and 109,785.00 is: 151,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,290.37 : 257,108.39 = 109,785.00 : x
  2. Step 2: Convert to fraction form
    186,290.37/257,108.39 = 109,785.00/x
  3. Step 3: Cross multiply
    186,290.37x = 257,108.39 × 109,785.00
  4. Step 4: Simplify right side
    186,290.37x = 28,226,645,423.08
  5. Step 5: Solve for x
    x = 28,226,645,423.08/186,290.37
  6. Step 6: Final answer
    x = 151,519.62

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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.