Home / 125,131.70-172,681.99-67,771.17

Finding the Fourth Proportional to 125,131.70, 172,681.99 and 67,771.17

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Solution

The fourth proportional to 125,131.70, 172,681.99 and 67,771.17 is: 93,524.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131.70 : 172,681.99 = 67,771.17 : x
  2. Step 2: Convert to fraction form
    125,131.70/172,681.99 = 67,771.17/x
  3. Step 3: Cross multiply
    125,131.70x = 172,681.99 × 67,771.17
  4. Step 4: Simplify right side
    125,131.70x = 11,702,860,330.80
  5. Step 5: Solve for x
    x = 11,702,860,330.80/125,131.70
  6. Step 6: Final answer
    x = 93,524.34

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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.