Home / 145,065.91-200,192.46-81,402.34

Finding the Fourth Proportional to 145,065.91, 200,192.46 and 81,402.34

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Solution

The fourth proportional to 145,065.91, 200,192.46 and 81,402.34 is: 112,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,065.91 : 200,192.46 = 81,402.34 : x
  2. Step 2: Convert to fraction form
    145,065.91/200,192.46 = 81,402.34/x
  3. Step 3: Cross multiply
    145,065.91x = 200,192.46 × 81,402.34
  4. Step 4: Simplify right side
    145,065.91x = 16,296,134,694.36
  5. Step 5: Solve for x
    x = 16,296,134,694.36/145,065.91
  6. Step 6: Final answer
    x = 112,336.07

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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.