Home / 120,858.84-181,291.82-57,685.62

Finding the Fourth Proportional to 120,858.84, 181,291.82 and 57,685.62

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Solution

The fourth proportional to 120,858.84, 181,291.82 and 57,685.62 is: 86,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,858.84 : 181,291.82 = 57,685.62 : x
  2. Step 2: Convert to fraction form
    120,858.84/181,291.82 = 57,685.62/x
  3. Step 3: Cross multiply
    120,858.84x = 181,291.82 × 57,685.62
  4. Step 4: Simplify right side
    120,858.84x = 10,457,931,037.63
  5. Step 5: Solve for x
    x = 10,457,931,037.63/120,858.84
  6. Step 6: Final answer
    x = 86,530.13

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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.