Home / 105,237.19-145,227.42-57,491.33

Finding the Fourth Proportional to 105,237.19, 145,227.42 and 57,491.33

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Solution

The fourth proportional to 105,237.19, 145,227.42 and 57,491.33 is: 79,338.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,237.19 : 145,227.42 = 57,491.33 : x
  2. Step 2: Convert to fraction form
    105,237.19/145,227.42 = 57,491.33/x
  3. Step 3: Cross multiply
    105,237.19x = 145,227.42 × 57,491.33
  4. Step 4: Simplify right side
    105,237.19x = 8,349,317,240.81
  5. Step 5: Solve for x
    x = 8,349,317,240.81/105,237.19
  6. Step 6: Final answer
    x = 79,338.09

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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.