Home / 105,339.07-145,367.89-57,592.41

Finding the Fourth Proportional to 105,339.07, 145,367.89 and 57,592.41

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Solution

The fourth proportional to 105,339.07, 145,367.89 and 57,592.41 is: 79,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.07 : 145,367.89 = 57,592.41 : x
  2. Step 2: Convert to fraction form
    105,339.07/145,367.89 = 57,592.41/x
  3. Step 3: Cross multiply
    105,339.07x = 145,367.89 × 57,592.41
  4. Step 4: Simplify right side
    105,339.07x = 8,372,087,121.71
  5. Step 5: Solve for x
    x = 8,372,087,121.71/105,339.07
  6. Step 6: Final answer
    x = 79,477.51

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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.