Home / 145,326.60-200,527.38-81,664.20

Finding the Fourth Proportional to 145,326.60, 200,527.38 and 81,664.20

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Solution

The fourth proportional to 145,326.60, 200,527.38 and 81,664.20 is: 112,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,326.60 : 200,527.38 = 81,664.20 : x
  2. Step 2: Convert to fraction form
    145,326.60/200,527.38 = 81,664.20/x
  3. Step 3: Cross multiply
    145,326.60x = 200,527.38 × 81,664.20
  4. Step 4: Simplify right side
    145,326.60x = 16,375,908,065.80
  5. Step 5: Solve for x
    x = 16,375,908,065.80/145,326.60
  6. Step 6: Final answer
    x = 112,683.49

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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.