Home / 155,191.28-214,148.00-87,197.45

Finding the Fourth Proportional to 155,191.28, 214,148.00 and 87,197.45

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Solution

The fourth proportional to 155,191.28, 214,148.00 and 87,197.45 is: 120,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,191.28 : 214,148.00 = 87,197.45 : x
  2. Step 2: Convert to fraction form
    155,191.28/214,148.00 = 87,197.45/x
  3. Step 3: Cross multiply
    155,191.28x = 214,148.00 × 87,197.45
  4. Step 4: Simplify right side
    155,191.28x = 18,673,158,669.85
  5. Step 5: Solve for x
    x = 18,673,158,669.85/155,191.28
  6. Step 6: Final answer
    x = 120,323.51

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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.