Home / 155,596.04-214,270.74-135,168.78

Finding the Fourth Proportional to 155,596.04, 214,270.74 and 135,168.78

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Solution

The fourth proportional to 155,596.04, 214,270.74 and 135,168.78 is: 186,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,596.04 : 214,270.74 = 135,168.78 : x
  2. Step 2: Convert to fraction form
    155,596.04/214,270.74 = 135,168.78/x
  3. Step 3: Cross multiply
    155,596.04x = 214,270.74 × 135,168.78
  4. Step 4: Simplify right side
    155,596.04x = 28,962,714,515.50
  5. Step 5: Solve for x
    x = 28,962,714,515.50/155,596.04
  6. Step 6: Final answer
    x = 186,140.44

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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.