Home / 185,631.60-256,170.06-100,748.64

Finding the Fourth Proportional to 185,631.60, 256,170.06 and 100,748.64

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Solution

The fourth proportional to 185,631.60, 256,170.06 and 100,748.64 is: 139,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.60 : 256,170.06 = 100,748.64 : x
  2. Step 2: Convert to fraction form
    185,631.60/256,170.06 = 100,748.64/x
  3. Step 3: Cross multiply
    185,631.60x = 256,170.06 × 100,748.64
  4. Step 4: Simplify right side
    185,631.60x = 25,808,785,153.72
  5. Step 5: Solve for x
    x = 25,808,785,153.72/185,631.60
  6. Step 6: Final answer
    x = 139,032.28

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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.