Home / 105,233.28-145,217.71-57,488.33

Finding the Fourth Proportional to 105,233.28, 145,217.71 and 57,488.33

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Solution

The fourth proportional to 105,233.28, 145,217.71 and 57,488.33 is: 79,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,233.28 : 145,217.71 = 57,488.33 : x
  2. Step 2: Convert to fraction form
    105,233.28/145,217.71 = 57,488.33/x
  3. Step 3: Cross multiply
    105,233.28x = 145,217.71 × 57,488.33
  4. Step 4: Simplify right side
    105,233.28x = 8,348,324,069.23
  5. Step 5: Solve for x
    x = 8,348,324,069.23/105,233.28
  6. Step 6: Final answer
    x = 79,331.60

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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.