Home / 124,767.84-172,197.18-79,431.33

Finding the Fourth Proportional to 124,767.84, 172,197.18 and 79,431.33

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Solution

The fourth proportional to 124,767.84, 172,197.18 and 79,431.33 is: 109,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,767.84 : 172,197.18 = 79,431.33 : x
  2. Step 2: Convert to fraction form
    124,767.84/172,197.18 = 79,431.33/x
  3. Step 3: Cross multiply
    124,767.84x = 172,197.18 × 79,431.33
  4. Step 4: Simplify right side
    124,767.84x = 13,677,851,029.65
  5. Step 5: Solve for x
    x = 13,677,851,029.65/124,767.84
  6. Step 6: Final answer
    x = 109,626.42

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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.