Home / 155,343.77-214,372.36-87,360.72

Finding the Fourth Proportional to 155,343.77, 214,372.36 and 87,360.72

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Solution

The fourth proportional to 155,343.77, 214,372.36 and 87,360.72 is: 120,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,343.77 : 214,372.36 = 87,360.72 : x
  2. Step 2: Convert to fraction form
    155,343.77/214,372.36 = 87,360.72/x
  3. Step 3: Cross multiply
    155,343.77x = 214,372.36 × 87,360.72
  4. Step 4: Simplify right side
    155,343.77x = 18,727,723,717.70
  5. Step 5: Solve for x
    x = 18,727,723,717.70/155,343.77
  6. Step 6: Final answer
    x = 120,556.64

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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.