Home / 155,614.20-214,744.77-87,630.90

Finding the Fourth Proportional to 155,614.20, 214,744.77 and 87,630.90

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Solution

The fourth proportional to 155,614.20, 214,744.77 and 87,630.90 is: 120,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,614.20 : 214,744.77 = 87,630.90 : x
  2. Step 2: Convert to fraction form
    155,614.20/214,744.77 = 87,630.90/x
  3. Step 3: Cross multiply
    155,614.20x = 214,744.77 × 87,630.90
  4. Step 4: Simplify right side
    155,614.20x = 18,818,277,465.39
  5. Step 5: Solve for x
    x = 18,818,277,465.39/155,614.20
  6. Step 6: Final answer
    x = 120,929.05

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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.