Home / 143,558.41-215,321.21-38,385.58

Finding the Fourth Proportional to 143,558.41, 215,321.21 and 38,385.58

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Solution

The fourth proportional to 143,558.41, 215,321.21 and 38,385.58 is: 57,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,558.41 : 215,321.21 = 38,385.58 : x
  2. Step 2: Convert to fraction form
    143,558.41/215,321.21 = 38,385.58/x
  3. Step 3: Cross multiply
    143,558.41x = 215,321.21 × 38,385.58
  4. Step 4: Simplify right side
    143,558.41x = 8,265,228,263.62
  5. Step 5: Solve for x
    x = 8,265,228,263.62/143,558.41
  6. Step 6: Final answer
    x = 57,573.98

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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.