Home / 155,544.30-214,655.22-87,563.70

Finding the Fourth Proportional to 155,544.30, 214,655.22 and 87,563.70

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Solution

The fourth proportional to 155,544.30, 214,655.22 and 87,563.70 is: 120,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,544.30 : 214,655.22 = 87,563.70 : x
  2. Step 2: Convert to fraction form
    155,544.30/214,655.22 = 87,563.70/x
  3. Step 3: Cross multiply
    155,544.30x = 214,655.22 × 87,563.70
  4. Step 4: Simplify right side
    155,544.30x = 18,796,005,287.51
  5. Step 5: Solve for x
    x = 18,796,005,287.51/155,544.30
  6. Step 6: Final answer
    x = 120,840.21

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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.