Home / 155,528.44-214,636.23-87,568.78

Finding the Fourth Proportional to 155,528.44, 214,636.23 and 87,568.78

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Solution

The fourth proportional to 155,528.44, 214,636.23 and 87,568.78 is: 120,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,528.44 : 214,636.23 = 87,568.78 : x
  2. Step 2: Convert to fraction form
    155,528.44/214,636.23 = 87,568.78/x
  3. Step 3: Cross multiply
    155,528.44x = 214,636.23 × 87,568.78
  4. Step 4: Simplify right side
    155,528.44x = 18,795,432,804.90
  5. Step 5: Solve for x
    x = 18,795,432,804.90/155,528.44
  6. Step 6: Final answer
    x = 120,848.85

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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.