Home / 105,339.13-145,369.42-57,592.37

Finding the Fourth Proportional to 105,339.13, 145,369.42 and 57,592.37

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Solution

The fourth proportional to 105,339.13, 145,369.42 and 57,592.37 is: 79,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.13 : 145,369.42 = 57,592.37 : x
  2. Step 2: Convert to fraction form
    105,339.13/145,369.42 = 57,592.37/x
  3. Step 3: Cross multiply
    105,339.13x = 145,369.42 × 57,592.37
  4. Step 4: Simplify right side
    105,339.13x = 8,372,169,642.77
  5. Step 5: Solve for x
    x = 8,372,169,642.77/105,339.13
  6. Step 6: Final answer
    x = 79,478.25

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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.