Home / 102,858.12-141,957.33-57,538.62

Finding the Fourth Proportional to 102,858.12, 141,957.33 and 57,538.62

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Solution

The fourth proportional to 102,858.12, 141,957.33 and 57,538.62 is: 79,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,858.12 : 141,957.33 = 57,538.62 : x
  2. Step 2: Convert to fraction form
    102,858.12/141,957.33 = 57,538.62/x
  3. Step 3: Cross multiply
    102,858.12x = 141,957.33 × 57,538.62
  4. Step 4: Simplify right side
    102,858.12x = 8,168,028,867.08
  5. Step 5: Solve for x
    x = 8,168,028,867.08/102,858.12
  6. Step 6: Final answer
    x = 79,410.64

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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.