Home / 145,255.31-200,462.56-81,593.16

Finding the Fourth Proportional to 145,255.31, 200,462.56 and 81,593.16

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Solution

The fourth proportional to 145,255.31, 200,462.56 and 81,593.16 is: 112,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,255.31 : 200,462.56 = 81,593.16 : x
  2. Step 2: Convert to fraction form
    145,255.31/200,462.56 = 81,593.16/x
  3. Step 3: Cross multiply
    145,255.31x = 200,462.56 × 81,593.16
  4. Step 4: Simplify right side
    145,255.31x = 16,356,373,528.11
  5. Step 5: Solve for x
    x = 16,356,373,528.11/145,255.31
  6. Step 6: Final answer
    x = 112,604.31

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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.