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Finding the Fourth Proportional to 84,902.10, 119,037.90 and 84,902.10

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Solution

The fourth proportional to 84,902.10, 119,037.90 and 84,902.10 is: 119,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,902.10 : 119,037.90 = 84,902.10 : x
  2. Step 2: Convert to fraction form
    84,902.10/119,037.90 = 84,902.10/x
  3. Step 3: Cross multiply
    84,902.10x = 119,037.90 × 84,902.10
  4. Step 4: Simplify right side
    84,902.10x = 10,106,567,689.59
  5. Step 5: Solve for x
    x = 10,106,567,689.59/84,902.10
  6. Step 6: Final answer
    x = 119,037.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.