Home / 185,621.83-256,156.63-100,738.89

Finding the Fourth Proportional to 185,621.83, 256,156.63 and 100,738.89

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Solution

The fourth proportional to 185,621.83, 256,156.63 and 100,738.89 is: 139,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,621.83 : 256,156.63 = 100,738.89 : x
  2. Step 2: Convert to fraction form
    185,621.83/256,156.63 = 100,738.89/x
  3. Step 3: Cross multiply
    185,621.83x = 256,156.63 × 100,738.89
  4. Step 4: Simplify right side
    185,621.83x = 25,804,934,320.49
  5. Step 5: Solve for x
    x = 25,804,934,320.49/185,621.83
  6. Step 6: Final answer
    x = 139,018.86

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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.