Home / 125,175.85-172,742.75-68,587.21

Finding the Fourth Proportional to 125,175.85, 172,742.75 and 68,587.21

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Solution

The fourth proportional to 125,175.85, 172,742.75 and 68,587.21 is: 94,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,175.85 : 172,742.75 = 68,587.21 : x
  2. Step 2: Convert to fraction form
    125,175.85/172,742.75 = 68,587.21/x
  3. Step 3: Cross multiply
    125,175.85x = 172,742.75 × 68,587.21
  4. Step 4: Simplify right side
    125,175.85x = 11,847,942,927.29
  5. Step 5: Solve for x
    x = 11,847,942,927.29/125,175.85
  6. Step 6: Final answer
    x = 94,650.39

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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.