Home / 185,319.69-255,741.06-100,436.68

Finding the Fourth Proportional to 185,319.69, 255,741.06 and 100,436.68

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Solution

The fourth proportional to 185,319.69, 255,741.06 and 100,436.68 is: 138,602.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,319.69 : 255,741.06 = 100,436.68 : x
  2. Step 2: Convert to fraction form
    185,319.69/255,741.06 = 100,436.68/x
  3. Step 3: Cross multiply
    185,319.69x = 255,741.06 × 100,436.68
  4. Step 4: Simplify right side
    185,319.69x = 25,685,783,006.08
  5. Step 5: Solve for x
    x = 25,685,783,006.08/185,319.69
  6. Step 6: Final answer
    x = 138,602.56

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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.