Home / 105,282.03-145,288.65-57,535.41

Finding the Fourth Proportional to 105,282.03, 145,288.65 and 57,535.41

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Solution

The fourth proportional to 105,282.03, 145,288.65 and 57,535.41 is: 79,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,282.03 : 145,288.65 = 57,535.41 : x
  2. Step 2: Convert to fraction form
    105,282.03/145,288.65 = 57,535.41/x
  3. Step 3: Cross multiply
    105,282.03x = 145,288.65 × 57,535.41
  4. Step 4: Simplify right side
    105,282.03x = 8,359,242,046.10
  5. Step 5: Solve for x
    x = 8,359,242,046.10/105,282.03
  6. Step 6: Final answer
    x = 79,398.56

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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.