Home / 149,044.84-205,679.85-81,060.34

Finding the Fourth Proportional to 149,044.84, 205,679.85 and 81,060.34

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Solution

The fourth proportional to 149,044.84, 205,679.85 and 81,060.34 is: 111,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,044.84 : 205,679.85 = 81,060.34 : x
  2. Step 2: Convert to fraction form
    149,044.84/205,679.85 = 81,060.34/x
  3. Step 3: Cross multiply
    149,044.84x = 205,679.85 × 81,060.34
  4. Step 4: Simplify right side
    149,044.84x = 16,672,478,572.15
  5. Step 5: Solve for x
    x = 16,672,478,572.15/149,044.84
  6. Step 6: Final answer
    x = 111,862.17

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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.