Home / 102,954.60-142,066.98-57,629.64

Finding the Fourth Proportional to 102,954.60, 142,066.98 and 57,629.64

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Solution

The fourth proportional to 102,954.60, 142,066.98 and 57,629.64 is: 79,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,954.60 : 142,066.98 = 57,629.64 : x
  2. Step 2: Convert to fraction form
    102,954.60/142,066.98 = 57,629.64/x
  3. Step 3: Cross multiply
    102,954.60x = 142,066.98 × 57,629.64
  4. Step 4: Simplify right side
    102,954.60x = 8,187,268,913.29
  5. Step 5: Solve for x
    x = 8,187,268,913.29/102,954.60
  6. Step 6: Final answer
    x = 79,523.10

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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.