Home / 230,051.25-345,220.29-87,909.21

Finding the Fourth Proportional to 230,051.25, 345,220.29 and 87,909.21

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Solution

The fourth proportional to 230,051.25, 345,220.29 and 87,909.21 is: 131,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,051.25 : 345,220.29 = 87,909.21 : x
  2. Step 2: Convert to fraction form
    230,051.25/345,220.29 = 87,909.21/x
  3. Step 3: Cross multiply
    230,051.25x = 345,220.29 × 87,909.21
  4. Step 4: Simplify right side
    230,051.25x = 30,348,042,969.87
  5. Step 5: Solve for x
    x = 30,348,042,969.87/230,051.25
  6. Step 6: Final answer
    x = 131,918.62

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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.