Home / 117,145.52-161,661.90-63,431.66

Finding the Fourth Proportional to 117,145.52, 161,661.90 and 63,431.66

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Solution

The fourth proportional to 117,145.52, 161,661.90 and 63,431.66 is: 87,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,145.52 : 161,661.90 = 63,431.66 : x
  2. Step 2: Convert to fraction form
    117,145.52/161,661.90 = 63,431.66/x
  3. Step 3: Cross multiply
    117,145.52x = 161,661.90 × 63,431.66
  4. Step 4: Simplify right side
    117,145.52x = 10,254,482,230.03
  5. Step 5: Solve for x
    x = 10,254,482,230.03/117,145.52
  6. Step 6: Final answer
    x = 87,536.28

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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.