Home / 149,738.02-206,637.28-81,754.01

Finding the Fourth Proportional to 149,738.02, 206,637.28 and 81,754.01

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Solution

The fourth proportional to 149,738.02, 206,637.28 and 81,754.01 is: 112,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,738.02 : 206,637.28 = 81,754.01 : x
  2. Step 2: Convert to fraction form
    149,738.02/206,637.28 = 81,754.01/x
  3. Step 3: Cross multiply
    149,738.02x = 206,637.28 × 81,754.01
  4. Step 4: Simplify right side
    149,738.02x = 16,893,425,792.81
  5. Step 5: Solve for x
    x = 16,893,425,792.81/149,738.02
  6. Step 6: Final answer
    x = 112,819.88

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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.