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Finding the Fourth Proportional to 125,337, 172,965.06 and 68,748.51

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Solution

The fourth proportional to 125,337, 172,965.06 and 68,748.51 is: 94,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,337 : 172,965.06 = 68,748.51 : x
  2. Step 2: Convert to fraction form
    125,337/172,965.06 = 68,748.51/x
  3. Step 3: Cross multiply
    125,337x = 172,965.06 × 68,748.51
  4. Step 4: Simplify right side
    125,337x = 11,891,090,157.06
  5. Step 5: Solve for x
    x = 11,891,090,157.06/125,337
  6. Step 6: Final answer
    x = 94,872.94

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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.