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Finding the Fourth Proportional to 82,800.45, 124,200.68 and 82,800.45

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Solution

The fourth proportional to 82,800.45, 124,200.68 and 82,800.45 is: 124,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.45 : 124,200.68 = 82,800.45 : x
  2. Step 2: Convert to fraction form
    82,800.45/124,200.68 = 82,800.45/x
  3. Step 3: Cross multiply
    82,800.45x = 124,200.68 × 82,800.45
  4. Step 4: Simplify right side
    82,800.45x = 10,283,871,780.30
  5. Step 5: Solve for x
    x = 10,283,871,780.30/82,800.45
  6. Step 6: Final answer
    x = 124,200.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.