Home / 153,945.40-230,918.10-142,135.60

Finding the Fourth Proportional to 153,945.40, 230,918.10 and 142,135.60

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Solution

The fourth proportional to 153,945.40, 230,918.10 and 142,135.60 is: 213,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,945.40 : 230,918.10 = 142,135.60 : x
  2. Step 2: Convert to fraction form
    153,945.40/230,918.10 = 142,135.60/x
  3. Step 3: Cross multiply
    153,945.40x = 230,918.10 × 142,135.60
  4. Step 4: Simplify right side
    153,945.40x = 32,821,682,694.36
  5. Step 5: Solve for x
    x = 32,821,682,694.36/153,945.40
  6. Step 6: Final answer
    x = 213,203.40

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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.