Home / 178,174.40-245,822.84-121,487.36

Finding the Fourth Proportional to 178,174.40, 245,822.84 and 121,487.36

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Solution

The fourth proportional to 178,174.40, 245,822.84 and 121,487.36 is: 167,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,174.40 : 245,822.84 = 121,487.36 : x
  2. Step 2: Convert to fraction form
    178,174.40/245,822.84 = 121,487.36/x
  3. Step 3: Cross multiply
    178,174.40x = 245,822.84 × 121,487.36
  4. Step 4: Simplify right side
    178,174.40x = 29,864,367,859.30
  5. Step 5: Solve for x
    x = 29,864,367,859.30/178,174.40
  6. Step 6: Final answer
    x = 167,613.12

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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.