Home / 143,711.76-215,538.48-38,506.12

Finding the Fourth Proportional to 143,711.76, 215,538.48 and 38,506.12

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Solution

The fourth proportional to 143,711.76, 215,538.48 and 38,506.12 is: 57,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,711.76 : 215,538.48 = 38,506.12 : x
  2. Step 2: Convert to fraction form
    143,711.76/215,538.48 = 38,506.12/x
  3. Step 3: Cross multiply
    143,711.76x = 215,538.48 × 38,506.12
  4. Step 4: Simplify right side
    143,711.76x = 8,299,550,575.50
  5. Step 5: Solve for x
    x = 8,299,550,575.50/143,711.76
  6. Step 6: Final answer
    x = 57,751.37

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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.