Home / 143,117.20-214,521.04-54,331.44

Finding the Fourth Proportional to 143,117.20, 214,521.04 and 54,331.44

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Solution

The fourth proportional to 143,117.20, 214,521.04 and 54,331.44 is: 81,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,117.20 : 214,521.04 = 54,331.44 : x
  2. Step 2: Convert to fraction form
    143,117.20/214,521.04 = 54,331.44/x
  3. Step 3: Cross multiply
    143,117.20x = 214,521.04 × 54,331.44
  4. Step 4: Simplify right side
    143,117.20x = 11,655,237,013.50
  5. Step 5: Solve for x
    x = 11,655,237,013.50/143,117.20
  6. Step 6: Final answer
    x = 81,438.41

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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.