Home / 129,246.84-178,173.72-85,566.24

Finding the Fourth Proportional to 129,246.84, 178,173.72 and 85,566.24

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Solution

The fourth proportional to 129,246.84, 178,173.72 and 85,566.24 is: 117,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,246.84 : 178,173.72 = 85,566.24 : x
  2. Step 2: Convert to fraction form
    129,246.84/178,173.72 = 85,566.24/x
  3. Step 3: Cross multiply
    129,246.84x = 178,173.72 × 85,566.24
  4. Step 4: Simplify right side
    129,246.84x = 15,245,655,287.21
  5. Step 5: Solve for x
    x = 15,245,655,287.21/129,246.84
  6. Step 6: Final answer
    x = 117,957.66

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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.