Home / 543,749.34-815,615.47-133,423.04

Finding the Fourth Proportional to 543,749.34, 815,615.47 and 133,423.04

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Solution

The fourth proportional to 543,749.34, 815,615.47 and 133,423.04 is: 200,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,749.34 : 815,615.47 = 133,423.04 : x
  2. Step 2: Convert to fraction form
    543,749.34/815,615.47 = 133,423.04/x
  3. Step 3: Cross multiply
    543,749.34x = 815,615.47 × 133,423.04
  4. Step 4: Simplify right side
    543,749.34x = 108,821,895,478.43
  5. Step 5: Solve for x
    x = 108,821,895,478.43/543,749.34
  6. Step 6: Final answer
    x = 200,132.46

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1.5x scale

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.