Home / 143,613.47-198,156.53-83,180.49

Finding the Fourth Proportional to 143,613.47, 198,156.53 and 83,180.49

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Solution

The fourth proportional to 143,613.47, 198,156.53 and 83,180.49 is: 114,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.47 : 198,156.53 = 83,180.49 : x
  2. Step 2: Convert to fraction form
    143,613.47/198,156.53 = 83,180.49/x
  3. Step 3: Cross multiply
    143,613.47x = 198,156.53 × 83,180.49
  4. Step 4: Simplify right side
    143,613.47x = 16,482,756,846.20
  5. Step 5: Solve for x
    x = 16,482,756,846.20/143,613.47
  6. Step 6: Final answer
    x = 114,771.67

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1.5x scale

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.