Home / 140,997.30-194,588.76-77,347.50

Finding the Fourth Proportional to 140,997.30, 194,588.76 and 77,347.50

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Solution

The fourth proportional to 140,997.30, 194,588.76 and 77,347.50 is: 106,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,997.30 : 194,588.76 = 77,347.50 : x
  2. Step 2: Convert to fraction form
    140,997.30/194,588.76 = 77,347.50/x
  3. Step 3: Cross multiply
    140,997.30x = 194,588.76 × 77,347.50
  4. Step 4: Simplify right side
    140,997.30x = 15,050,954,114.10
  5. Step 5: Solve for x
    x = 15,050,954,114.10/140,997.30
  6. Step 6: Final answer
    x = 106,746.40

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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.