Home / 492,021.90-738,032.85-137,090.70

Finding the Fourth Proportional to 492,021.90, 738,032.85 and 137,090.70

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Solution

The fourth proportional to 492,021.90, 738,032.85 and 137,090.70 is: 205,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,021.90 : 738,032.85 = 137,090.70 : x
  2. Step 2: Convert to fraction form
    492,021.90/738,032.85 = 137,090.70/x
  3. Step 3: Cross multiply
    492,021.90x = 738,032.85 × 137,090.70
  4. Step 4: Simplify right side
    492,021.90x = 101,177,440,029.50
  5. Step 5: Solve for x
    x = 101,177,440,029.50/492,021.90
  6. Step 6: Final answer
    x = 205,636.05

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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.