Home / 117,887.78-162,687.21-64,174.34

Finding the Fourth Proportional to 117,887.78, 162,687.21 and 64,174.34

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Solution

The fourth proportional to 117,887.78, 162,687.21 and 64,174.34 is: 88,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,887.78 : 162,687.21 = 64,174.34 : x
  2. Step 2: Convert to fraction form
    117,887.78/162,687.21 = 64,174.34/x
  3. Step 3: Cross multiply
    117,887.78x = 162,687.21 × 64,174.34
  4. Step 4: Simplify right side
    117,887.78x = 10,440,344,328.19
  5. Step 5: Solve for x
    x = 10,440,344,328.19/117,887.78
  6. Step 6: Final answer
    x = 88,561.72

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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.