Home / 102,936.79-142,055.31-57,614.41

Finding the Fourth Proportional to 102,936.79, 142,055.31 and 57,614.41

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Solution

The fourth proportional to 102,936.79, 142,055.31 and 57,614.41 is: 79,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,936.79 : 142,055.31 = 57,614.41 : x
  2. Step 2: Convert to fraction form
    102,936.79/142,055.31 = 57,614.41/x
  3. Step 3: Cross multiply
    102,936.79x = 142,055.31 × 57,614.41
  4. Step 4: Simplify right side
    102,936.79x = 8,184,432,873.02
  5. Step 5: Solve for x
    x = 8,184,432,873.02/102,936.79
  6. Step 6: Final answer
    x = 79,509.31

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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.