Home / 117,142.34-161,656.52-63,427.40

Finding the Fourth Proportional to 117,142.34, 161,656.52 and 63,427.40

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Solution

The fourth proportional to 117,142.34, 161,656.52 and 63,427.40 is: 87,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.34 : 161,656.52 = 63,427.40 : x
  2. Step 2: Convert to fraction form
    117,142.34/161,656.52 = 63,427.40/x
  3. Step 3: Cross multiply
    117,142.34x = 161,656.52 × 63,427.40
  4. Step 4: Simplify right side
    117,142.34x = 10,253,452,756.65
  5. Step 5: Solve for x
    x = 10,253,452,756.65/117,142.34
  6. Step 6: Final answer
    x = 87,529.86

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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.