Home / 155,533.97-214,634.50-87,550.73

Finding the Fourth Proportional to 155,533.97, 214,634.50 and 87,550.73

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Solution

The fourth proportional to 155,533.97, 214,634.50 and 87,550.73 is: 120,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,533.97 : 214,634.50 = 87,550.73 : x
  2. Step 2: Convert to fraction form
    155,533.97/214,634.50 = 87,550.73/x
  3. Step 3: Cross multiply
    155,533.97x = 214,634.50 × 87,550.73
  4. Step 4: Simplify right side
    155,533.97x = 18,791,407,158.19
  5. Step 5: Solve for x
    x = 18,791,407,158.19/155,533.97
  6. Step 6: Final answer
    x = 120,818.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.