Home / 151,989.80-227,984.70-139,742.60

Finding the Fourth Proportional to 151,989.80, 227,984.70 and 139,742.60

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Solution

The fourth proportional to 151,989.80, 227,984.70 and 139,742.60 is: 209,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,989.80 : 227,984.70 = 139,742.60 : x
  2. Step 2: Convert to fraction form
    151,989.80/227,984.70 = 139,742.60/x
  3. Step 3: Cross multiply
    151,989.80x = 227,984.70 × 139,742.60
  4. Step 4: Simplify right side
    151,989.80x = 31,859,174,738.22
  5. Step 5: Solve for x
    x = 31,859,174,738.22/151,989.80
  6. Step 6: Final answer
    x = 209,613.90

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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.