Home / 178,176.90-245,826.29-121,489.86

Finding the Fourth Proportional to 178,176.90, 245,826.29 and 121,489.86

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Solution

The fourth proportional to 178,176.90, 245,826.29 and 121,489.86 is: 167,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,176.90 : 245,826.29 = 121,489.86 : x
  2. Step 2: Convert to fraction form
    178,176.90/245,826.29 = 121,489.86/x
  3. Step 3: Cross multiply
    178,176.90x = 245,826.29 × 121,489.86
  4. Step 4: Simplify right side
    178,176.90x = 29,865,401,556.42
  5. Step 5: Solve for x
    x = 29,865,401,556.42/178,176.90
  6. Step 6: Final answer
    x = 167,616.57

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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.