Home / 143,017.60-214,429.20-54,257.80

Finding the Fourth Proportional to 143,017.60, 214,429.20 and 54,257.80

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Solution

The fourth proportional to 143,017.60, 214,429.20 and 54,257.80 is: 81,349.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,017.60 : 214,429.20 = 54,257.80 : x
  2. Step 2: Convert to fraction form
    143,017.60/214,429.20 = 54,257.80/x
  3. Step 3: Cross multiply
    143,017.60x = 214,429.20 × 54,257.80
  4. Step 4: Simplify right side
    143,017.60x = 11,634,456,647.76
  5. Step 5: Solve for x
    x = 11,634,456,647.76/143,017.60
  6. Step 6: Final answer
    x = 81,349.82

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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.