Home / 145,066.32-200,195.16-81,409.20

Finding the Fourth Proportional to 145,066.32, 200,195.16 and 81,409.20

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Solution

The fourth proportional to 145,066.32, 200,195.16 and 81,409.20 is: 112,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,066.32 : 200,195.16 = 81,409.20 : x
  2. Step 2: Convert to fraction form
    145,066.32/200,195.16 = 81,409.20/x
  3. Step 3: Cross multiply
    145,066.32x = 200,195.16 × 81,409.20
  4. Step 4: Simplify right side
    145,066.32x = 16,297,727,819.47
  5. Step 5: Solve for x
    x = 16,297,727,819.47/145,066.32
  6. Step 6: Final answer
    x = 112,346.74

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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.