Home / 142,733.90-214,100.85-76,378.70

Finding the Fourth Proportional to 142,733.90, 214,100.85 and 76,378.70

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Solution

The fourth proportional to 142,733.90, 214,100.85 and 76,378.70 is: 114,568.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,733.90 : 214,100.85 = 76,378.70 : x
  2. Step 2: Convert to fraction form
    142,733.90/214,100.85 = 76,378.70/x
  3. Step 3: Cross multiply
    142,733.90x = 214,100.85 × 76,378.70
  4. Step 4: Simplify right side
    142,733.90x = 16,352,744,591.90
  5. Step 5: Solve for x
    x = 16,352,744,591.90/142,733.90
  6. Step 6: Final answer
    x = 114,568.05

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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.