Home / 185,290.30-255,700.83-100,406.62

Finding the Fourth Proportional to 185,290.30, 255,700.83 and 100,406.62

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Solution

The fourth proportional to 185,290.30, 255,700.83 and 100,406.62 is: 138,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,290.30 : 255,700.83 = 100,406.62 : x
  2. Step 2: Convert to fraction form
    185,290.30/255,700.83 = 100,406.62/x
  3. Step 3: Cross multiply
    185,290.30x = 255,700.83 × 100,406.62
  4. Step 4: Simplify right side
    185,290.30x = 25,674,056,071.49
  5. Step 5: Solve for x
    x = 25,674,056,071.49/185,290.30
  6. Step 6: Final answer
    x = 138,561.25

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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.