Home / 137,657.18-206,561.01-53,420.67

Finding the Fourth Proportional to 137,657.18, 206,561.01 and 53,420.67

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Solution

The fourth proportional to 137,657.18, 206,561.01 and 53,420.67 is: 80,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,657.18 : 206,561.01 = 53,420.67 : x
  2. Step 2: Convert to fraction form
    137,657.18/206,561.01 = 53,420.67/x
  3. Step 3: Cross multiply
    137,657.18x = 206,561.01 × 53,420.67
  4. Step 4: Simplify right side
    137,657.18x = 11,034,627,550.08
  5. Step 5: Solve for x
    x = 11,034,627,550.08/137,657.18
  6. Step 6: Final answer
    x = 80,160.21

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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.