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Finding the Fourth Proportional to 125,343, 172,973.34 and 68,754.51

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Solution

The fourth proportional to 125,343, 172,973.34 and 68,754.51 is: 94,881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,343 : 172,973.34 = 68,754.51 : x
  2. Step 2: Convert to fraction form
    125,343/172,973.34 = 68,754.51/x
  3. Step 3: Cross multiply
    125,343x = 172,973.34 × 68,754.51
  4. Step 4: Simplify right side
    125,343x = 11,892,697,234.76
  5. Step 5: Solve for x
    x = 11,892,697,234.76/125,343
  6. Step 6: Final answer
    x = 94,881.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.