Home / 167,573.08-231,362.18-128,741.72

Finding the Fourth Proportional to 167,573.08, 231,362.18 and 128,741.72

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Solution

The fourth proportional to 167,573.08, 231,362.18 and 128,741.72 is: 177,749.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,573.08 : 231,362.18 = 128,741.72 : x
  2. Step 2: Convert to fraction form
    167,573.08/231,362.18 = 128,741.72/x
  3. Step 3: Cross multiply
    167,573.08x = 231,362.18 × 128,741.72
  4. Step 4: Simplify right side
    167,573.08x = 29,785,964,996.15
  5. Step 5: Solve for x
    x = 29,785,964,996.15/167,573.08
  6. Step 6: Final answer
    x = 177,749.11

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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.