Home / 105,336.03-145,363.70-57,589.37

Finding the Fourth Proportional to 105,336.03, 145,363.70 and 57,589.37

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Solution

The fourth proportional to 105,336.03, 145,363.70 and 57,589.37 is: 79,473.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,336.03 : 145,363.70 = 57,589.37 : x
  2. Step 2: Convert to fraction form
    105,336.03/145,363.70 = 57,589.37/x
  3. Step 3: Cross multiply
    105,336.03x = 145,363.70 × 57,589.37
  4. Step 4: Simplify right side
    105,336.03x = 8,371,402,889.10
  5. Step 5: Solve for x
    x = 8,371,402,889.10/105,336.03
  6. Step 6: Final answer
    x = 79,473.31

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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.