Home / 117,161.10-161,682.47-63,446.21

Finding the Fourth Proportional to 117,161.10, 161,682.47 and 63,446.21

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Solution

The fourth proportional to 117,161.10, 161,682.47 and 63,446.21 is: 87,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,161.10 : 161,682.47 = 63,446.21 : x
  2. Step 2: Convert to fraction form
    117,161.10/161,682.47 = 63,446.21/x
  3. Step 3: Cross multiply
    117,161.10x = 161,682.47 × 63,446.21
  4. Step 4: Simplify right side
    117,161.10x = 10,258,139,295.14
  5. Step 5: Solve for x
    x = 10,258,139,295.14/117,161.10
  6. Step 6: Final answer
    x = 87,555.85

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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.