Home / 145,090.56-200,235.36-80,563.20

Finding the Fourth Proportional to 145,090.56, 200,235.36 and 80,563.20

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Solution

The fourth proportional to 145,090.56, 200,235.36 and 80,563.20 is: 111,182.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,090.56 : 200,235.36 = 80,563.20 : x
  2. Step 2: Convert to fraction form
    145,090.56/200,235.36 = 80,563.20/x
  3. Step 3: Cross multiply
    145,090.56x = 200,235.36 × 80,563.20
  4. Step 4: Simplify right side
    145,090.56x = 16,131,601,354.75
  5. Step 5: Solve for x
    x = 16,131,601,354.75/145,090.56
  6. Step 6: Final answer
    x = 111,182.98

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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.