Home / 185,630.77-256,168.95-100,747.85

Finding the Fourth Proportional to 185,630.77, 256,168.95 and 100,747.85

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Solution

The fourth proportional to 185,630.77, 256,168.95 and 100,747.85 is: 139,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,630.77 : 256,168.95 = 100,747.85 : x
  2. Step 2: Convert to fraction form
    185,630.77/256,168.95 = 100,747.85/x
  3. Step 3: Cross multiply
    185,630.77x = 256,168.95 × 100,747.85
  4. Step 4: Simplify right side
    185,630.77x = 25,808,470,949.26
  5. Step 5: Solve for x
    x = 25,808,470,949.26/185,630.77
  6. Step 6: Final answer
    x = 139,031.21

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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.