Home / 124,378.41-171,669.93-79,047.57

Finding the Fourth Proportional to 124,378.41, 171,669.93 and 79,047.57

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Solution

The fourth proportional to 124,378.41, 171,669.93 and 79,047.57 is: 109,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,378.41 : 171,669.93 = 79,047.57 : x
  2. Step 2: Convert to fraction form
    124,378.41/171,669.93 = 79,047.57/x
  3. Step 3: Cross multiply
    124,378.41x = 171,669.93 × 79,047.57
  4. Step 4: Simplify right side
    124,378.41x = 13,570,090,808.57
  5. Step 5: Solve for x
    x = 13,570,090,808.57/124,378.41
  6. Step 6: Final answer
    x = 109,103.27

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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.