Home / 143,373.44-214,431.36-127,689.12

Finding the Fourth Proportional to 143,373.44, 214,431.36 and 127,689.12

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Solution

The fourth proportional to 143,373.44, 214,431.36 and 127,689.12 is: 190,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,373.44 : 214,431.36 = 127,689.12 : x
  2. Step 2: Convert to fraction form
    143,373.44/214,431.36 = 127,689.12/x
  3. Step 3: Cross multiply
    143,373.44x = 214,431.36 × 127,689.12
  4. Step 4: Simplify right side
    143,373.44x = 27,380,551,658.80
  5. Step 5: Solve for x
    x = 27,380,551,658.80/143,373.44
  6. Step 6: Final answer
    x = 190,973.67

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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.