Home / 230,131.20-345,326.40-89,871.60

Finding the Fourth Proportional to 230,131.20, 345,326.40 and 89,871.60

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Solution

The fourth proportional to 230,131.20, 345,326.40 and 89,871.60 is: 134,858.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,131.20 : 345,326.40 = 89,871.60 : x
  2. Step 2: Convert to fraction form
    230,131.20/345,326.40 = 89,871.60/x
  3. Step 3: Cross multiply
    230,131.20x = 345,326.40 × 89,871.60
  4. Step 4: Simplify right side
    230,131.20x = 31,035,036,090.24
  5. Step 5: Solve for x
    x = 31,035,036,090.24/230,131.20
  6. Step 6: Final answer
    x = 134,858.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.