Home / 185,639.28-256,182.36-100,756.32

Finding the Fourth Proportional to 185,639.28, 256,182.36 and 100,756.32

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Solution

The fourth proportional to 185,639.28, 256,182.36 and 100,756.32 is: 139,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,639.28 : 256,182.36 = 100,756.32 : x
  2. Step 2: Convert to fraction form
    185,639.28/256,182.36 = 100,756.32/x
  3. Step 3: Cross multiply
    185,639.28x = 256,182.36 × 100,756.32
  4. Step 4: Simplify right side
    185,639.28x = 25,811,991,842.52
  5. Step 5: Solve for x
    x = 25,811,991,842.52/185,639.28
  6. Step 6: Final answer
    x = 139,043.80

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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.