Home / 105,237.38-145,231.20-57,494.36

Finding the Fourth Proportional to 105,237.38, 145,231.20 and 57,494.36

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Solution

The fourth proportional to 105,237.38, 145,231.20 and 57,494.36 is: 79,344.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,237.38 : 145,231.20 = 57,494.36 : x
  2. Step 2: Convert to fraction form
    105,237.38/145,231.20 = 57,494.36/x
  3. Step 3: Cross multiply
    105,237.38x = 145,231.20 × 57,494.36
  4. Step 4: Simplify right side
    105,237.38x = 8,349,974,896.03
  5. Step 5: Solve for x
    x = 8,349,974,896.03/105,237.38
  6. Step 6: Final answer
    x = 79,344.19

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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.