Home / 143,440.80-214,243.44-129,911.76

Finding the Fourth Proportional to 143,440.80, 214,243.44 and 129,911.76

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Solution

The fourth proportional to 143,440.80, 214,243.44 and 129,911.76 is: 194,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440.80 : 214,243.44 = 129,911.76 : x
  2. Step 2: Convert to fraction form
    143,440.80/214,243.44 = 129,911.76/x
  3. Step 3: Cross multiply
    143,440.80x = 214,243.44 × 129,911.76
  4. Step 4: Simplify right side
    143,440.80x = 27,832,742,358.85
  5. Step 5: Solve for x
    x = 27,832,742,358.85/143,440.80
  6. Step 6: Final answer
    x = 194,036.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.