Home / 129,261.63-194,074.10-66,127.04

Finding the Fourth Proportional to 129,261.63, 194,074.10 and 66,127.04

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Solution

The fourth proportional to 129,261.63, 194,074.10 and 66,127.04 is: 99,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,261.63 : 194,074.10 = 66,127.04 : x
  2. Step 2: Convert to fraction form
    129,261.63/194,074.10 = 66,127.04/x
  3. Step 3: Cross multiply
    129,261.63x = 194,074.10 × 66,127.04
  4. Step 4: Simplify right side
    129,261.63x = 12,833,545,773.66
  5. Step 5: Solve for x
    x = 12,833,545,773.66/129,261.63
  6. Step 6: Final answer
    x = 99,283.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.