Home / 129,192.84-178,175.10-83,826.12

Finding the Fourth Proportional to 129,192.84, 178,175.10 and 83,826.12

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Solution

The fourth proportional to 129,192.84, 178,175.10 and 83,826.12 is: 115,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,192.84 : 178,175.10 = 83,826.12 : x
  2. Step 2: Convert to fraction form
    129,192.84/178,175.10 = 83,826.12/x
  3. Step 3: Cross multiply
    129,192.84x = 178,175.10 × 83,826.12
  4. Step 4: Simplify right side
    129,192.84x = 14,935,727,313.61
  5. Step 5: Solve for x
    x = 14,935,727,313.61/129,192.84
  6. Step 6: Final answer
    x = 115,608.01

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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.