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Finding the Fourth Proportional to 143,457.60, 214,927.20 and 126,868.80

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Solution

The fourth proportional to 143,457.60, 214,927.20 and 126,868.80 is: 190,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,457.60 : 214,927.20 = 126,868.80 : x
  2. Step 2: Convert to fraction form
    143,457.60/214,927.20 = 126,868.80/x
  3. Step 3: Cross multiply
    143,457.60x = 214,927.20 × 126,868.80
  4. Step 4: Simplify right side
    143,457.60x = 27,267,555,951.36
  5. Step 5: Solve for x
    x = 27,267,555,951.36/143,457.60
  6. Step 6: Final answer
    x = 190,073.97

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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.