Home / 124,415.26-171,638.90-79,068.94

Finding the Fourth Proportional to 124,415.26, 171,638.90 and 79,068.94

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Solution

The fourth proportional to 124,415.26, 171,638.90 and 79,068.94 is: 109,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,415.26 : 171,638.90 = 79,068.94 : x
  2. Step 2: Convert to fraction form
    124,415.26/171,638.90 = 79,068.94/x
  3. Step 3: Cross multiply
    124,415.26x = 171,638.90 × 79,068.94
  4. Step 4: Simplify right side
    124,415.26x = 13,571,304,632.23
  5. Step 5: Solve for x
    x = 13,571,304,632.23/124,415.26
  6. Step 6: Final answer
    x = 109,080.71

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1.5x scale

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.