Home / 207,147.30-285,820.41-121,089.66

Finding the Fourth Proportional to 207,147.30, 285,820.41 and 121,089.66

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Solution

The fourth proportional to 207,147.30, 285,820.41 and 121,089.66 is: 167,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,147.30 : 285,820.41 = 121,089.66 : x
  2. Step 2: Convert to fraction form
    207,147.30/285,820.41 = 121,089.66/x
  3. Step 3: Cross multiply
    207,147.30x = 285,820.41 × 121,089.66
  4. Step 4: Simplify right side
    207,147.30x = 34,609,896,267.96
  5. Step 5: Solve for x
    x = 34,609,896,267.96/207,147.30
  6. Step 6: Final answer
    x = 167,078.67

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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.