Home / 120,848.11-166,815.30-103,783.83

Finding the Fourth Proportional to 120,848.11, 166,815.30 and 103,783.83

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Solution

The fourth proportional to 120,848.11, 166,815.30 and 103,783.83 is: 143,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,848.11 : 166,815.30 = 103,783.83 : x
  2. Step 2: Convert to fraction form
    120,848.11/166,815.30 = 103,783.83/x
  3. Step 3: Cross multiply
    120,848.11x = 166,815.30 × 103,783.83
  4. Step 4: Simplify right side
    120,848.11x = 17,312,730,189.83
  5. Step 5: Solve for x
    x = 17,312,730,189.83/120,848.11
  6. Step 6: Final answer
    x = 143,260.25

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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.