Home / 105,219.36-145,200.33-57,472.92

Finding the Fourth Proportional to 105,219.36, 145,200.33 and 57,472.92

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Solution

The fourth proportional to 105,219.36, 145,200.33 and 57,472.92 is: 79,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,219.36 : 145,200.33 = 57,472.92 : x
  2. Step 2: Convert to fraction form
    105,219.36/145,200.33 = 57,472.92/x
  3. Step 3: Cross multiply
    105,219.36x = 145,200.33 × 57,472.92
  4. Step 4: Simplify right side
    105,219.36x = 8,345,086,950.06
  5. Step 5: Solve for x
    x = 8,345,086,950.06/105,219.36
  6. Step 6: Final answer
    x = 79,311.33

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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.