Home / 140,602.51-194,031.48-76,940.31

Finding the Fourth Proportional to 140,602.51, 194,031.48 and 76,940.31

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Solution

The fourth proportional to 140,602.51, 194,031.48 and 76,940.31 is: 106,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,602.51 : 194,031.48 = 76,940.31 : x
  2. Step 2: Convert to fraction form
    140,602.51/194,031.48 = 76,940.31/x
  3. Step 3: Cross multiply
    140,602.51x = 194,031.48 × 76,940.31
  4. Step 4: Simplify right side
    140,602.51x = 14,928,842,220.96
  5. Step 5: Solve for x
    x = 14,928,842,220.96/140,602.51
  6. Step 6: Final answer
    x = 106,177.64

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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.