Home / 140,240.64-193,536.72-76,583.28

Finding the Fourth Proportional to 140,240.64, 193,536.72 and 76,583.28

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Solution

The fourth proportional to 140,240.64, 193,536.72 and 76,583.28 is: 105,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240.64 : 193,536.72 = 76,583.28 : x
  2. Step 2: Convert to fraction form
    140,240.64/193,536.72 = 76,583.28/x
  3. Step 3: Cross multiply
    140,240.64x = 193,536.72 × 76,583.28
  4. Step 4: Simplify right side
    140,240.64x = 14,821,676,818.04
  5. Step 5: Solve for x
    x = 14,821,676,818.04/140,240.64
  6. Step 6: Final answer
    x = 105,687.46

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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.