Home / 143,215.60-214,823.40-38,045.20

Finding the Fourth Proportional to 143,215.60, 214,823.40 and 38,045.20

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Solution

The fourth proportional to 143,215.60, 214,823.40 and 38,045.20 is: 57,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.60 : 214,823.40 = 38,045.20 : x
  2. Step 2: Convert to fraction form
    143,215.60/214,823.40 = 38,045.20/x
  3. Step 3: Cross multiply
    143,215.60x = 214,823.40 × 38,045.20
  4. Step 4: Simplify right side
    143,215.60x = 8,172,999,217.68
  5. Step 5: Solve for x
    x = 8,172,999,217.68/143,215.60
  6. Step 6: Final answer
    x = 57,067.80

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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.