Home / 168,045.08-252,141.75-89,139.96

Finding the Fourth Proportional to 168,045.08, 252,141.75 and 89,139.96

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Solution

The fourth proportional to 168,045.08, 252,141.75 and 89,139.96 is: 133,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,045.08 : 252,141.75 = 89,139.96 : x
  2. Step 2: Convert to fraction form
    168,045.08/252,141.75 = 89,139.96/x
  3. Step 3: Cross multiply
    168,045.08x = 252,141.75 × 89,139.96
  4. Step 4: Simplify right side
    168,045.08x = 22,475,905,509.33
  5. Step 5: Solve for x
    x = 22,475,905,509.33/168,045.08
  6. Step 6: Final answer
    x = 133,749.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.