Home / 124,355.94-171,638.91-79,025.07

Finding the Fourth Proportional to 124,355.94, 171,638.91 and 79,025.07

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Solution

The fourth proportional to 124,355.94, 171,638.91 and 79,025.07 is: 109,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,355.94 : 171,638.91 = 79,025.07 : x
  2. Step 2: Convert to fraction form
    124,355.94/171,638.91 = 79,025.07/x
  3. Step 3: Cross multiply
    124,355.94x = 171,638.91 × 79,025.07
  4. Step 4: Simplify right side
    124,355.94x = 13,563,776,877.47
  5. Step 5: Solve for x
    x = 13,563,776,877.47/124,355.94
  6. Step 6: Final answer
    x = 109,072.21

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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.