Home / 145,945.80-218,991.60-82,814.40

Finding the Fourth Proportional to 145,945.80, 218,991.60 and 82,814.40

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Solution

The fourth proportional to 145,945.80, 218,991.60 and 82,814.40 is: 124,262.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,945.80 : 218,991.60 = 82,814.40 : x
  2. Step 2: Convert to fraction form
    145,945.80/218,991.60 = 82,814.40/x
  3. Step 3: Cross multiply
    145,945.80x = 218,991.60 × 82,814.40
  4. Step 4: Simplify right side
    145,945.80x = 18,135,657,959.04
  5. Step 5: Solve for x
    x = 18,135,657,959.04/145,945.80
  6. Step 6: Final answer
    x = 124,262.97

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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.