Home / 120,093.63-165,619.04-72,263.94

Finding the Fourth Proportional to 120,093.63, 165,619.04 and 72,263.94

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Solution

The fourth proportional to 120,093.63, 165,619.04 and 72,263.94 is: 99,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,093.63 : 165,619.04 = 72,263.94 : x
  2. Step 2: Convert to fraction form
    120,093.63/165,619.04 = 72,263.94/x
  3. Step 3: Cross multiply
    120,093.63x = 165,619.04 × 72,263.94
  4. Step 4: Simplify right side
    120,093.63x = 11,968,284,008.10
  5. Step 5: Solve for x
    x = 11,968,284,008.10/120,093.63
  6. Step 6: Final answer
    x = 99,657.94

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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.