Home / 145,131.60-200,283.57-80,605.01

Finding the Fourth Proportional to 145,131.60, 200,283.57 and 80,605.01

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Solution

The fourth proportional to 145,131.60, 200,283.57 and 80,605.01 is: 111,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,131.60 : 200,283.57 = 80,605.01 : x
  2. Step 2: Convert to fraction form
    145,131.60/200,283.57 = 80,605.01/x
  3. Step 3: Cross multiply
    145,131.60x = 200,283.57 × 80,605.01
  4. Step 4: Simplify right side
    145,131.60x = 16,143,858,161.27
  5. Step 5: Solve for x
    x = 16,143,858,161.27/145,131.60
  6. Step 6: Final answer
    x = 111,236.00

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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.