Home / 155,341.64-214,369.43-87,358.60

Finding the Fourth Proportional to 155,341.64, 214,369.43 and 87,358.60

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Solution

The fourth proportional to 155,341.64, 214,369.43 and 87,358.60 is: 120,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,341.64 : 214,369.43 = 87,358.60 : x
  2. Step 2: Convert to fraction form
    155,341.64/214,369.43 = 87,358.60/x
  3. Step 3: Cross multiply
    155,341.64x = 214,369.43 × 87,358.60
  4. Step 4: Simplify right side
    155,341.64x = 18,727,011,912.94
  5. Step 5: Solve for x
    x = 18,727,011,912.94/155,341.64
  6. Step 6: Final answer
    x = 120,553.71

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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.