Home / 115,905.40-173,858.10-82,444.30

Finding the Fourth Proportional to 115,905.40, 173,858.10 and 82,444.30

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Solution

The fourth proportional to 115,905.40, 173,858.10 and 82,444.30 is: 123,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,905.40 : 173,858.10 = 82,444.30 : x
  2. Step 2: Convert to fraction form
    115,905.40/173,858.10 = 82,444.30/x
  3. Step 3: Cross multiply
    115,905.40x = 173,858.10 × 82,444.30
  4. Step 4: Simplify right side
    115,905.40x = 14,333,609,353.83
  5. Step 5: Solve for x
    x = 14,333,609,353.83/115,905.40
  6. Step 6: Final answer
    x = 123,666.45

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Similar ratio
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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.