Home / 185,639.77-256,176.03-100,755.01

Finding the Fourth Proportional to 185,639.77, 256,176.03 and 100,755.01

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Solution

The fourth proportional to 185,639.77, 256,176.03 and 100,755.01 is: 139,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,639.77 : 256,176.03 = 100,755.01 : x
  2. Step 2: Convert to fraction form
    185,639.77/256,176.03 = 100,755.01/x
  3. Step 3: Cross multiply
    185,639.77x = 256,176.03 × 100,755.01
  4. Step 4: Simplify right side
    185,639.77x = 25,811,018,464.41
  5. Step 5: Solve for x
    x = 25,811,018,464.41/185,639.77
  6. Step 6: Final answer
    x = 139,038.19

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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.