Home / 145,594.94-200,920.61-81,932.74

Finding the Fourth Proportional to 145,594.94, 200,920.61 and 81,932.74

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Solution

The fourth proportional to 145,594.94, 200,920.61 and 81,932.74 is: 113,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,594.94 : 200,920.61 = 81,932.74 : x
  2. Step 2: Convert to fraction form
    145,594.94/200,920.61 = 81,932.74/x
  3. Step 3: Cross multiply
    145,594.94x = 200,920.61 × 81,932.74
  4. Step 4: Simplify right side
    145,594.94x = 16,461,975,187.81
  5. Step 5: Solve for x
    x = 16,461,975,187.81/145,594.94
  6. Step 6: Final answer
    x = 113,066.95

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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.