Home / 140,752.40-194,238.84-76,221.67

Finding the Fourth Proportional to 140,752.40, 194,238.84 and 76,221.67

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Solution

The fourth proportional to 140,752.40, 194,238.84 and 76,221.67 is: 105,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,752.40 : 194,238.84 = 76,221.67 : x
  2. Step 2: Convert to fraction form
    140,752.40/194,238.84 = 76,221.67/x
  3. Step 3: Cross multiply
    140,752.40x = 194,238.84 × 76,221.67
  4. Step 4: Simplify right side
    140,752.40x = 14,805,208,060.24
  5. Step 5: Solve for x
    x = 14,805,208,060.24/140,752.40
  6. Step 6: Final answer
    x = 105,186.19

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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.