Home / 120,783.40-181,206.44-45,904.84

Finding the Fourth Proportional to 120,783.40, 181,206.44 and 45,904.84

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Solution

The fourth proportional to 120,783.40, 181,206.44 and 45,904.84 is: 68,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783.40 : 181,206.44 = 45,904.84 : x
  2. Step 2: Convert to fraction form
    120,783.40/181,206.44 = 45,904.84/x
  3. Step 3: Cross multiply
    120,783.40x = 181,206.44 × 45,904.84
  4. Step 4: Simplify right side
    120,783.40x = 8,318,252,635.17
  5. Step 5: Solve for x
    x = 8,318,252,635.17/120,783.40
  6. Step 6: Final answer
    x = 68,869.17

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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.