Home / 147,116.88-203,028.05-81,706.01

Finding the Fourth Proportional to 147,116.88, 203,028.05 and 81,706.01

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Solution

The fourth proportional to 147,116.88, 203,028.05 and 81,706.01 is: 112,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,116.88 : 203,028.05 = 81,706.01 : x
  2. Step 2: Convert to fraction form
    147,116.88/203,028.05 = 81,706.01/x
  3. Step 3: Cross multiply
    147,116.88x = 203,028.05 × 81,706.01
  4. Step 4: Simplify right side
    147,116.88x = 16,588,611,072.71
  5. Step 5: Solve for x
    x = 16,588,611,072.71/147,116.88
  6. Step 6: Final answer
    x = 112,758.04

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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.