Home / 102,008.25-140,788.08-84,985.50

Finding the Fourth Proportional to 102,008.25, 140,788.08 and 84,985.50

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Solution

The fourth proportional to 102,008.25, 140,788.08 and 84,985.50 is: 117,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,008.25 : 140,788.08 = 84,985.50 : x
  2. Step 2: Convert to fraction form
    102,008.25/140,788.08 = 84,985.50/x
  3. Step 3: Cross multiply
    102,008.25x = 140,788.08 × 84,985.50
  4. Step 4: Simplify right side
    102,008.25x = 11,964,945,372.84
  5. Step 5: Solve for x
    x = 11,964,945,372.84/102,008.25
  6. Step 6: Final answer
    x = 117,293.90

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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.