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Finding the Fourth Proportional to 143,730.34, 215,608.84 and 48,928.67

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Solution

The fourth proportional to 143,730.34, 215,608.84 and 48,928.67 is: 73,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,730.34 : 215,608.84 = 48,928.67 : x
  2. Step 2: Convert to fraction form
    143,730.34/215,608.84 = 48,928.67/x
  3. Step 3: Cross multiply
    143,730.34x = 215,608.84 × 48,928.67
  4. Step 4: Simplify right side
    143,730.34x = 10,549,453,781.44
  5. Step 5: Solve for x
    x = 10,549,453,781.44/143,730.34
  6. Step 6: Final answer
    x = 73,397.54

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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.