Home / 102,919.44-142,035.36-57,602.64

Finding the Fourth Proportional to 102,919.44, 142,035.36 and 57,602.64

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Solution

The fourth proportional to 102,919.44, 142,035.36 and 57,602.64 is: 79,495.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,919.44 : 142,035.36 = 57,602.64 : x
  2. Step 2: Convert to fraction form
    102,919.44/142,035.36 = 57,602.64/x
  3. Step 3: Cross multiply
    102,919.44x = 142,035.36 × 57,602.64
  4. Step 4: Simplify right side
    102,919.44x = 8,181,611,709.35
  5. Step 5: Solve for x
    x = 8,181,611,709.35/102,919.44
  6. Step 6: Final answer
    x = 79,495.30

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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.